Engineering materials procurement plan

Part 1: Engineering Materials Purchasing Program

In order to ensure the regular and orderly construction of the school, ensure the quality of construction materials, and reasonably reduce the project cost, the “Interim Measures for the Purchase of Building Materials for Infrastructure Projects of Huangshan College” was formulated.

The first temporary pricing material. Temporary pricing materials refer to materials that do not specify brands and technical parameters in the bidding documents, but materials that are based on tentative material prices, and are purchased according to the following methods.

1. When the construction project is required to use various building materials, it must obtain the “Material Purchase Requisition Form” from the General Affairs Office 15 days in advance, and carefully fill in the name, brand, quantity, specification and model of the required materials according to the contents of the form. Time, quality requirements, manufacturers and other content.

2. After the form is completed, the construction unit stamps it, the person in charge of the construction site signs it, and the general affairs department, the finance department, and the supervision department sign the audit opinion and submit it to the general affairs office.

3. The General Affairs Department shall organize a market inspection by the project material procurement team according to the “Material Purchase Requisition Form” submitted by the construction unit. The list of project material procurement teams is determined by the bidding leading group, and is generally composed of the general affairs department, the finance department, the supervision and auditing department, and the personnel of the user unit.

4. The main content of the inspection is to understand the price of the entire market, including the brands, prices, manufacturers, and technical parameters of the entire market. Compare high-quality brands and choose products with good quality and low prices.

5. After confirming the brand, price, and supply department, the General Affairs Department will fill in the “Approval Form for the Purchase of Infrastructure Materials of Huangshan College”. After approval according to the prescribed procedures, the “Material Procurement Notice” will be issued to the construction and supervision units and representatives of Party A. The construction unit signs a purchase agreement with the supplier in accordance with the “Material Procurement Notice”. The school does not undertake the guarantee of the purchase agreement.

After the material directly supplied by Party A is determined by the material procurement team, the general agreement will sign the supply agreement and organize the acceptance.

6. When the construction materials arrive at the construction site, the General Affairs Department will organize the supervision and auditing department, the site supervision and other relevant departments to conduct the inspection and acceptance, and fill in the acceptance opinions.

7. The General Affairs Department carefully collects and organizes the archives of various materials procurement and ensures the authenticity and integrity of the materials.

Article 2 The materials of the designated brand. Refers to the materials that clearly identify the brand, manufacturer, and technical parameters in the bidding file. The construction unit shall provide samples and a full set of technical materials in strict accordance with the bidding documents. After Party A’s representative and the supervisor’s audit, the Party shall organize the procurement, and the materials will be delivered. The application shall be submitted by the representative of Party A, and after the acceptance inspection by the General Affairs Office, the Finance Department and the Supervision and Audit Office, the material certification visa form shall be processed before use. The material certification form is used as evidence for project acceptance, but it is not used as the basis for finalizing or changing the amount of work.


Part 2: Engineering Materials Purchasing Program

First, the purpose

These measures are specifically formulated to further strengthen the planning and management of materials, supervise and control unnecessary expenses, ensure that procurement materials meet construction requirements, promote reasonable turnover of materials and funds, and standardize material procurement procedures.

Second scope of application

These measures are applicable to the procurement of materials required for engineering projects undertaken by the company.

1. Management responsibility

1) The company procurement department is responsible for:

A. Conduct market research, collect supply information and materials, formulate and update qualified supplier lists, and organize inspection, evaluation, and material bidding for suppliers according to ISO9000 system;

B. Formulate the “Purchasing Plan” according to the “Material Plan”, provide samples of materials and sign the material “Order Contract”;

C. Tracking and monitoring the implementation of procurement plans and material ordering contracts;

2) The company's project department is responsible for:

A. Provide a supply list of materials plans and projects that meet engineering needs;

B. Organize the sample selection and sealing of Party A;

C. Enter the site according to the procurement plan and the order contract, and inspect the incoming materials;

D. Provide information and materials to evaluate supplier supply, and participate in the inspection and evaluation of suppliers;

E. Develop material plans and organize payment and clearance for suppliers.

3) The company's finance department is responsible for:

A. Payment of materials according to the contractual agreement and arrival conditions;

B. Carry out inventory of the material library every month, guide the library management work, monitor the account, real and card compliance status;

2, the procurement program

1) Procurement preparation stage

The Purchasing Department collects information on various materials and classifies them according to the information, and establishes and enriches the “Material Information Database”; each type of material requires at least three source suppliers that meet our requirements to fill out the “Supplier Survey Form” and provide the following information:

A supplier business license;

B qualification certificate;

C tax registration certificate;

D ISO9000 quality system certification;

E company profile;

F material three certificates; G quality standard sample map or photo;

Those who meet the above requirements may be listed as qualified suppliers and recorded on the Qualified Suppliers List; the materials purchased by the company must be selected from the suppliers in the Qualified Suppliers Directory.

2) Proposal stage:

A. The Market Development Department will organize the bidding, determine the bill of materials according to the design drawings and the requirements of Party A, and provide the Procurement Department with the “Material List” of the bulk main materials clearly required by Party A’s bidding documents within two days after receiving the bidding documents. Attached a full set of tender files and drawings;

B. The Purchasing Department conducts market research according to the “Material List”, contacts the material supplier, prepares bid samples and supplier materials, material sample data, and produces sample display cards and prepares them three days before the opening of the bid;

C. Each time the materials sample and data are archived by the Purchasing Department, they are classified in the Material Information Database;

3) Successful bidding stage

A. After the project wins the bid, the project department shall formulate the “Material Plan” within one week after entering the site according to the design drawings and the actual measured quantity on site. The material plan must include: material name, material quantity, material specification, material requirements, and advancement. Field time

B. The material plan is approved by the vice president;

C. The Purchasing Department reviews the Material Information Database according to the requirements of the Material Project, and contacts the material supplier to obtain the quotation data and samples.

D. Purchasing personnel to tidy up the quotation data, investigate the overall strength of the supplier and the quality, performance, specifications, etc. of the product, conduct price analysis, select the object of bargaining, and select at least three source suppliers for the main material and bulk materials.

E. The purchasing personnel will submit the materials and samples of the material suppliers after the price comparison, and submit them to the competent authority to determine the bargaining target and the bargaining bottom line.

F. The Purchasing Department formulates the Procurement Plan based on the material plan, inquiry, and bargaining results. G. "Purchasing Plan" is followed by "Consultation Record", fill in the inquiry or bargaining result and the "ordering manufacturer", "delivery time" and "payment method" issued by the competent deputy general manager for approval;

H. Two copies of the procurement plan approved by the company's deputy general manager are transferred to the project department, one is transferred to the finance department, and one is retained by the purchasing department.

I. The Purchasing Department, in accordance with the approved procurement plan, negotiates specific supply matters with selected suppliers;

J. The deputy general manager of the organization organized a material sample evaluation meeting to screen out suppliers who could not meet the engineering needs, and organized field visits to the suppliers who supplied us for the first time;

K. The samples that have passed the evaluation are organized by the project department to send samples and seal samples to Party A. For the sample materials of Party A, in principle, only the quality, standard, model, quantity, technical parameters, etc. are recognized. Not a confirmation range;

L. After confirming the material samples, the project department submits the detailed “Supply List” signed by the project manager and the vice president to the purchasing department according to the confirmation content. The “Supply List” specifies the material requirements, specifications and models, quantity supplied, and Goods time, etc., and as part of the material order contract;

M. The Purchasing Department will sign the contract negotiation for the material suppliers that can meet the requirements of the “Supply List”, issue a tender notice to the material suppliers that meet the requirements of the material bidding requirements, and organize the bidding work for the materials according to the bidding procedures prescribed by the company;

N. Purchasing Department determines the contracting object and drafts the “order contract” according to the negotiation or bidding result. The “order contract” is signed by the purchasing department after being reviewed and confirmed by the project department, the finance department and the deputy general manager;

O. For materials that do not require a single contract, the Purchasing Department lists the “Material List”, which requires suppliers to meet the supply requirements, and quotation and accompanying materials, and supplier information.

P. Purchasing Department selects 2-3 suppliers with high quality service and moderate price to sign a centralized supply contract on the premise of meeting the needs of the project, indicating the delivery period, quality requirements, payment methods, and delivery methods;

Q. After the contract is signed, the Purchasing Department will provide the project department with detailed contact information and a copy of the contract. The project department will go through the formalities for prepayment of materials according to the contract. After the contract is reviewed by the purchasing department, the deputy general manager of the company will sign the approval. After the payment process to the Finance Department;

R. The project department shall strictly purchase the purchased procurement plan and contract control materials, and organize the materials according to the progress of the project and the contract. After the materials are put into the site, the materials shall be checked and the quantity of materials shall be checked according to the materials and the arrival list. Quality, do single, goods, sample match. The materials that have passed the inspection shall be signed by the quality inspector and the warehouse manager of the project department on the invoicing order; the unqualified materials shall be inspected by the project department, and the quality department shall re-inspect the materials and retest the unqualified materials. The quality control program is handled, and the project department organizes the procurement department and the engineering department to jointly handle the return of non-conforming products. For the economic losses caused by our company, the project department and the purchasing department shall jointly handle the claim in accordance with the contract;

S. Inbound singular four copies, one retained project department, one for the supplier, the other two for the project department to use the project plan, fill in the reimbursement voucher, and the attached materials invoice to the purchasing department. After the Purchasing Department has verified the invoices and the invoices, the “Purchase Plan” and the order contract account are written off, and after the approval of the company’s deputy general manager, the Finance Department will go through the payment procedures in accordance with the contract;

T. After the material arrives, regardless of whether the material is inspected or not, the project department warehouse manager fills in the “Material Arrival Quality Summary Form” according to the supplier and delivers it to the purchasing department after the supplier has completed the supply to provide the evaluation supply. Business data

U. The material change caused by the design change and the reason for the change of Party A shall be formulated within two days after the change occurs, and the material change plan and the original reduction plan of the original total material plan shall be indicated. The visa form, after approval by the vice president, transferred to the Purchasing Department to formulate the "Procurement Change Plan";

V. The project department shall supplement the materials supplemented by the material plan, and shall formulate a supplementary plan for the materials. After approval by the vice president, the Ministry of Purification shall formulate the “Purchasing Supplementary Plan”;

W. After the purchase change and the supplementary plan are signed by the deputy general manager, the procurement department signs the contract or additional contract, and the project department organizes the materials to enter the site.

X. If the amount of required materials is less than the contracted quantity after the contract is signed, the project department shall promptly notify the purchasing department and the finance department within two days after the change occurs, so that the company can adjust the payment ratio in time.

Y. After the project is completed, the project department will clean up the warehouse materials, organize the materials to exit, return the well-preserved and unused materials to the supplier, and fill out the “Departure Material Confirmation Form” and “Outbound List”, signed by the supplier. Approved, the project department will handle the payment procedures for the final payment of the materials; after the procurement department has verified the correctness, the “purchase plan” and the order contract account will be written off, and after the approval of the deputy general manager of the company, the financial department will go through the payment procedures according to the contract; The Confirmation Form for Exit Material is in quadruplicate, one is forwarded to the Finance Department, one is forwarded to the Purchasing Department, and one project department is retained;

Z. For the materials that cannot be returned to the supplier, the project department fills out the “Departure Material List” and “Outbound Order Form”, returns it to the company's material warehouse, and after handling the handover procedures with the purchasing department, the purchasing department handles the warehousing procedures; After the completion of the project, the materials procurement and supply materials will be summarized, and the suppliers will be evaluated according to the evaluation criteria such as supply quality, service quality, and payment requirements. Suppliers that do not meet the requirements will be excluded from the Qualified Suppliers List and will be selected according to the project. Archive supplier profiles;

3. Purchasing discipline:

1) Purchasing personnel should strictly implement project procurement, and it is strictly forbidden to purchase outside the scope of the plan. Otherwise, the company will impose severe punishment on the responsible person;

2) The company's project department should make efforts to ensure the accuracy of the material plan, strictly control the waste of materials on site, and go through the relevant procedures in time for the supplementary materials and materials that are beyond the material plan, because the supplementary materials plan and the change materials are not processed in time. The related losses caused by the delay of construction period caused by the painting shall be the responsibility consequences of the project department;

3) In order to ensure the accuracy of the material plan, the project department shall control the supplementary materials plan within the quota specified by the company. For the supplementary materials plan that exceeds the quota range, the company will impose economic penalties on the project department;

4) The quality inspector and the warehouse manager of the project department shall strictly check the acceptance of the materials. The project department shall be responsible for notifying the quality department and the procurement department of the materials that are unqualified or whose quantity and specifications are inconsistent with the procurement plan, order contract and samples. Handling of replacement and prohibiting the storage of unqualified materials;

5) Purchasing personnel must not order and purchase blindly. Under the premise of quality, compliance, credit and after-sales service, purchase low-priced materials to achieve high quality and low price. At the same time, it is necessary to implement a responsibility system for tracking and handling affairs, and no responsibility for backlogging or delaying the handling of relevant business and accounting work.

4, attached

1) Procurement plan

2) Delivery list

3) Summary of material arrival quality

4) Qualified supplier list

5) Material change plan

6) Procurement change plan

7) Material Supplementary Plan

8) Exit material confirmation form

9) List of exit materials

5 These measures are implemented after approval by the general manager and the amendments are the same.


Part 3: Engineering Materials Purchasing Program

1. Problems in procurement management of highway engineering construction materials

1.1 The procurement management system is not perfect

Most of the road construction materials procurement today is mainly completed by the project department, while the enterprise layer basically does not participate in the procurement management. The supervision and control of the procurement process is relatively lacking in the project department, which will lead to corruption problems; the procurement organization is not perfect, the procurement work is basically completed by the material department of the project department, and the information support of the relevant departments is lacking; the procurement personnel lack relevant procurement. Management expertise; no financial costing.

1.2 The level of procurement information management is low

At present, in the procurement of materials, a lot of work is done by hand, which leads to the emergence of low efficiency and high cost.

1.3 Lack of detailed material procurement plan

The Ministry of Materials of the Ministry of Projects did not contact other departments, resulting in a relatively occluded information; lack of detailed and specific material procurement plans, material procurement was only carried out passively, and was not linked to actual work, resulting in normal construction progress.

1.4 Lack of modern procurement strategies and the use of procurement methods

Due to the relatively simple procurement methods and insufficient market information surveys, the information in the procurement of materials is asymmetrical, which increases the procurement cost.

1.5 Lack of supplier relationship management

There is no long-term cooperative relationship with suppliers. Procurement is basically a one-off behavior; the materials provided by suppliers cannot be scientifically managed, and the quality of incoming materials is unstable, which increases the frequency and cost of testing and sampling.

2. Main points of procurement cost control of highway materials construction

Material procurement cost control is the focus of major material procurement management. Uncertain external factors and human subjective factors have a greater impact on material procurement costs, and material procurement costs are weak links in highway engineering construction.

2.1 Material purchase price control

Enterprises should understand the market price of materials through market research or through consulting institutions. Under the premise of ensuring quality, shop around, choose a lower material purchase price; or obtain lower materials through open tendering, invitation to bid, etc. buying price. At the same time, we should pay attention to the fluctuation trend of the prices of major materials in the international and domestic markets, and take timely and effective measures to reduce the risk of price fluctuations.

2.2 Material purchase order, receiving cost control

The major material procurement contracts for highway engineering construction projects generally stipulate the on-demand supply and minimum supply of materials, that is, as long as the project department needs materials and the demand exceeds the minimum supply quantity, the supplier will be notified, and the supplier will The required materials are supplied to the designated construction site. The number of times of supply will increase the transportation cost of the supplier, and the construction project department will increase the cost of receiving and inspection; the large supply volume will increase the storage and storage costs of the construction project department, so it is necessary to reasonably determine the batch and batch of incoming goods. , to save the total cost of material procurement.

2.3 Material purchase freight, warehousing, custodial fee control

The main materials used in highway engineering construction projects are large in materials, large in volume and high in quality, resulting in high transportation costs and relatively large storage and storage costs. In the procurement of materials, it is necessary to organize transportation reasonably and select the most economical transportation method to reduce transportation costs. And there is no ready-to-use warehouse available, and a temporary warehouse needs to be established. Only reducing the inventory of materials can reduce the cost of material storage and storage.

3. Procurement measures taken when price fluctuations of major materials are severe

3.1 Procurement measures taken when material prices soar

When the price of materials soars, as the management unit of the project, the owner should face up to the status quo and take timely measures to actively raise the material procurement reserve without prejudice to the terms of the contract, and lead the establishment of the supervision, contractor and design unit. The material procurement leading group will study and determine the material procurement methods that are in line with the actual project. In the methods of public bidding, invitation bidding, inquiry procurement and joint procurement, choose the inquiry procurement and joint procurement methods. Not only can we purchase materials with satisfactory quality and price in a short period of time, according to the construction organization plan, rationally allocate the amount of materials and reserves of each standard section to ensure the construction needs, and the procurement costs are paid by the owners, which solves the funds of the construction unit. The shortage problem has also established a long-term cooperation credit basis with material suppliers. The procurement leading group composed of the owner, the supervisor, the contractor and the design unit can timely clarify the risk responsibilities of the parties in accordance with the terms of the construction contract in the shortest time.

3.2 Procurement measures taken when material prices plummeted

The procurement team should analyze the development trend of the market price. When the price of the material keeps falling, the procurement staff of the project department should collect the real-time price of the purchased materials through the online inquiry or inquiry from the long-term cooperation supplier, and shorten the procurement planning cycle. Increase the number of purchases, and accurately calculate the amount of each purchase. Under the premise of ensuring continuous construction of the project, purchase as little as possible, and strive for the purchase cost savings when the material price continues to fall.

4. Highway engineering construction materials procurement management measures

4.1 Establish and improve the organization and system of material procurement management

Establish a procurement management organization led by the leadership of the project department and participate in various departments to strengthen communication and coordination; hire personnel with procurement expertise to be responsible for procurement business, strengthen professional ethics education for procurement personnel, strengthen discipline inspection and supervision, and prevent purchasers from eating kickbacks. At the expense of corporate interests. At present, more applications are public bidding methods and invitations to bidding methods to assist in the inquiry procurement method. The project department should flexibly select the appropriate procurement method according to the actual project material demand and the material supply and price of the project area.

4.2 Establishing a procurement management information system

Purchasing management information system has always been the focus of ERP implementation in various industries. The procurement management information system under ERP management mode provides great opportunities for improving processes, increasing productivity and reducing costs.

4.3 Strengthen the effectiveness of the procurement plan

According to the actual progress of the project, a more detailed material demand plan will be compiled, and the plan will be analyzed in depth to determine the purchase batch and purchase quantity. This not only ensures the continuity of the construction period and operation, but also effectively reduces the storage cost.

4.4 Strengthen supplier management and establish long-term partnerships

By strengthening supplier relationship management, selecting reputable suppliers, and establishing long-term cooperative relationships with suppliers, such suppliers' material quotations will definitely be lower than those of ordinary suppliers. Therefore, reasonable selection of suppliers can be directly Reduce procurement costs.

5. Conclusion

In the construction of highway engineering, material cost accounts for 60%~70% of the total construction cost. It can be seen that it is very important for the procurement management of highway engineering construction materials. Therefore, in practice, corresponding measures should be taken to overcome those materials procurement. Insufficient management, in short, to ensure the smooth progress of highway construction.


Part 4: Engineering Materials Purchasing Program

Chapter 1 General

The first is to regulate the management of engineering materials for the reconstruction and expansion project of Shaoguan to Xi'an Expressway, strengthen the control of raw material quality, and ensure the quality of the project. According to the contract file of this project and the “Simplified Implementation Outline of the Reconstruction and Expansion Project of Shaoguan-Xi'an Expressway”, These Measures are formulated in accordance with the relevant provisions of the “Implementation Opinions on the Quality Control of the Project of Reconstruction and Expansion of Shaoguan to Xi'an Expressway”.

Article 2: To overcome the blindness and randomness of the use of engineering materials, reduce the hidden dangers of engineering quality caused by the quality of engineering materials, standardize the source of project engineering materials, ensure the use of excellent materials in the project, improve the overall project quality, and expand and expand The project materials are subject to an entry system.

Article 3 The engineering materials referred to in these Measures refer to the materials used for the permanent works of this project, mainly including steel, cement and asphalt.

Article 4 The quality control during the selection, entry, storage and use of engineering materials shall be implemented in accordance with these Measures.

Chapter II Source Management of Engineering Materials

Article 5 Recommendation of materials

According to the needs of each construction unit, 4 to 6 manufacturers or brands are recommended for each material. The recommended materials must be accompanied by product certification certificates, test reports and other certification materials, and have a certain scale of production capacity, and convenient transportation, stable quality, near There are no unqualified records and quality accident records during the two years of use of the product. Famous domestic manufacturers and brands in Shaanxi Province are preferred.

Article 6 Investigation of Recommended Materials

The engineering materials recommended by the construction unit shall be tested and tested for their performance. After confirmation, the director of the resettlement office of the resident office shall be the director of the organization management office, the project team, the central laboratory and the resident office to jointly recommend the materials. On-site inspection of production equipment, technology, scale, product quality, performance capability, and social reputation.

Article 7 Determination of the scope of engineering materials

Determine the source of the material based on the results of the investigation. After the scope of a certain engineering material manufacturer or brand is determined, each construction unit may select the manufacturer or brand as the candidate material for this contract section within the scope determined by the engineering material. In the subsequent construction process, the purchase of engineering materials Must be within the selected range, unselected materials are strictly prohibited from entering the site, otherwise it is considered as non-conforming material.

Article 8 The materials for the implementation of the access system are: steel bars, steel strands, cement, rubber bearings, concrete admixtures, anchors, etc.

Article 9 Material Changes

During the construction process, materials source or brand shall not be replaced at will. If one of the following conditions is met, replacement or adjustment is allowed:

Material manufacturers cannot meet the supply requirements;

The material quality provided by the material manufacturer is unstable or cannot meet the construction needs.

The material change shall be submitted by the construction unit, and the resident office shall review it and re-examine the relevant procedures according to the above procedures.

Chapter III Entry Management of Engineering Materials

Article 10 Before entering the site, the materials need to be closed. The specific procedures are as follows:

1. When each batch of materials is planned to enter the site, the construction site test room of the construction unit shall prepare for inspection and report to the resident office. Within 24 hours, the supervision engineer shall arrive at the scene in time after receiving the report.

2. The construction unit must sample and inspect the raw materials according to the specified frequency and method at the side of the supervision engineer. The supervision engineer should also conduct sampling and sampling at the same time. After the construction unit has passed the inspection, it shall report the application materials of the batch materials to the supervision engineer in accordance with the regulations. The supervision engineer shall carefully check the application materials and check whether the batch materials can be used according to the results of the supervision sampling test.

3. When the inspection results of the construction unit, the resident office and the central laboratory are inconsistent, the test results of the central laboratory shall prevail. If there is a serious disagreement, the Supervisory Office will entrust a Class A laboratory with CMA certification to conduct the inspection and invite the quality inspection department to conduct the arbitration.

4. Anchorages, bridge supports, etc. need to do destructive tests, external test or other tests that take a long time to carry out, and can take the method of simultaneous inspection and self-inspection by the construction unit.

Article 11 Inspection requirements for various raw materials

1. Cement

When each batch of cement enters the market, the manufacturer shall provide the “Cement Factory Notice” and the “Cement Quality Inspection Report” to provide accurate and reliable inspection data to ensure the necessary traceability.

The cement can be packed in bulk or in bags. The net weight of the bagged cement is 50kg; and it should not be less than 99% of the weight of the standard. The total mass of 20 bags should be no less than 1000kg. The mark must meet the standard requirements. Clearly indicate: implementation of standards, cement varieties, code, strength grade, manufacturer, production license mark and number, factory number, packaging date, net content. Bulk cement should have the manufacturer's seal mark when entering the site, and should produce the same card as the bagged cement packaging mark.

2, steel and steel strands

For steel bars and steel strands entering the construction site, it is necessary to strictly verify whether the quality certificate is consistent with the actual product. Mainly look at steel surface signs and signs.

The surface of the ribbed steel bar with a diameter greater than 10 mm must be stamped and clearly visible. The contents include the grade, factory name and size.

3, asphalt

Manufacturers of each batch of asphalt should provide quality inspection reports or quality certificates to provide accurate and reliable inspection data to ensure necessary traceability.

Each tank asphalt truck must have a manufacturer's seal mark when it arrives, and a card with the same quality inspection report or quality certificate should be issued.

4, lime

The lime entering the construction site must be submitted with a quality certificate. The certificate should indicate the name of the plant, the name of the product, the grade, the test result, the batch number, and the date of manufacture.

5, gravel, medium coarse sand

After the transportation vehicle arrives, the construction unit and the resident office shall check the appearance quality of the materials. For materials with mud content, particle size gradation, weathering stone and needle-like content that do not meet the requirements, the entry and unloading shall be prohibited.

6. Concrete admixtures, anchors, bridge supports, expansion joints

For the above materials entering the construction site, it is necessary to strictly verify whether the quality certificate is consistent with the actual material.

Product marks must meet the requirements, and the package or product must be printed with a trademark.

The batch number and manufacturer of the bagged admixture from the factory; the date must be clearly printed, and if it is found to be inconsistent with the requirements, it should be processed according to the return.

Each set of anchors, each support, and each expansion joint must be affixed with the manufacturer's logo, and the contents of the logo are complete and clear.

7, fly ash

When each batch of materials comes into the market, the manufacturer shall provide the product "Quality Inspection Report". The factory inspection certificate for fly ash shall be marked: the name and batch number of the factory; the number and date of the certificate; the grade and quantity of fly ash; the quality inspection result; the inspection agency With personnel.

Fly ash must not contain solidified masses and other impurities.

Both dry and wet fly ash can be used. However, the moisture content of wet fly ash should not exceed 30%.

After all the above materials meet the requirements, the construction unit, the resident office, and the central laboratory shall conduct test tests on the incoming materials in accordance with the specified inspection frequency and inspection items.

Article 12 Before the first batch of engineering materials of each brand or manufacturer enters the market, the central laboratory must participate in random inspection and acceptance. After the raw materials enter the site, the central laboratory should be inspected regularly, and materials with doubts about the quality should be randomly selected for random inspection.