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What standards and testing equipment are needed for testing cement pipes?
What are the mandatory testing requirements for building materials?

(1). Construction engineering (1 1):

1. Steel factory certificate and test report

Answer: In addition to checking the factory certificate, structural steel should be sampled and rechecked as required before use.

B: Foreign steel bars need a permit to enter Shanghai.

C: In case of brittle fracture, poor welding performance or obvious abnormal mechanical properties of steel bars during processing, chemical composition inspection shall be conducted.

D: Besides the re-inspection of mechanical properties, the chemical composition of imported steel bars also needs to be analyzed.

E: Generally, section steel has the factory certificate, and the material meets the design requirements.

2. Welding test report and covered electrode (agent) certificate.

Answer: Flash butt welding, resistance spot welding, arc welding, electroslag pressure welding, gas pressure welding, submerged arc welding, etc. All steel bars must have qualified welding test reports.

B: Welders must have an examination certificate.

C: covered electrode (agent) factory certificate. covered electrode (agent) that needs baking before use must have baking records and meet the requirements.

3. Cement factory certificate and test report

A: The cement used in this project shall have the factory certificate, and the certificate shall indicate the variety, label, factory name, factory date, magnesium oxide and sulfur trioxide content, loss on ignition, fineness, setting time, stability, strength and other indicators.

B: The strength test report of cement shall include 3-day and 7-day strength test reports and 28-day strength test reports.

C: After the cement arrives at the construction site, it needs to be inspected according to the regulations, and it can only be used after passing the second interview.

D: If there are doubts about the quality of cement or the cement factory date is more than 3 months (1 month for quick-hardening portland cement), a second interview shall be conducted and used according to the results of the second interview.

E: cement from other places needs a permit to enter Shanghai.

F: Imported cement must be sampled for re-examination of stability and strength before use, and used according to the re-examination results.

G: The variety, label, factory name and factory number of cement in the cement packaging label are all unqualified products.

4. Brick factory certificate or test report

A: The bricks used in the project should have the factory certificate which is consistent with the variety and label specified in the design. The certificate should indicate the name of the factory, the grade of the brick and the basis of strength test.

B: The compressive strength and flexural strength shall be sampled as required.

C: Small concrete hollow blocks should have product licenses and certificates.

5. Waterproof material certificate and test report

A: The coiled material used should have the factory certificate, which should indicate the manufacturer's name, product name, label, variety and test data such as heat resistance, tensile strength, flexibility, water absorption and impermeability, and use it after sampling and re-inspection as required.

B: The asphalt binder shall have the factory certificate, and there shall be inspection reports on penetration, softening and ductility.

C: The mix proportion of cement should be determined through laboratory tests, and there should be a mix proportion test report, and a sampling test report on adhesion, flexibility and heat resistance should be compiled for field use.

D: When other roofing waterproof materials enter the construction site, they must have not only the certificate of approval, but also the inspection report. In the product manual, there must be a commitment to guarantee the use of 10 years.

E: The construction operators of waterproof works must hold relevant certificates.

6. Component certificate

Answer: Important components such as reinforced concrete, aerated concrete and steel structure components must have factory certificates, and the testing contents of various component certificates meet the design requirements and specifications.

B: The certificate of reinforced concrete members should have the strength data of concrete at 28 days.

C: Foreign parts must have a permit to enter Shanghai.

7. Test report of concrete block

A: Before concrete pouring, there should be a concrete mixture ratio report of the laboratory.

B: The number of concrete test blocks should be made according to different conditions. For concrete with impermeability requirements, the number of retained impermeability test blocks depends on the structure scale, but each unit project shall not be less than 2 groups.

C: The manufacture, maintenance and inspection of concrete test blocks and impervious concrete test blocks shall comply with the provisions of Shanghai Document (97) No.244.

8. Mortar block test report

Answer: If there is anything to do with masonry mortar, the ratio report determined by the laboratory first.

B: The manufacture, maintenance and inspection of mortar test blocks shall comply with the provisions of Shanghai (97) No.244 document.

C: When micro-foam mortar, cement mortar and cement mixed mortar are substituted for each other, the reduction of masonry strength should be considered; When micro-foamed mortar replaces mixed mortar,10% is reduced; When cement mortar replaces cement mixed mortar,15% will be reduced; Cement mixed mortar shall not be used in underground humid environment.

9. Records of geotechnical test and piling (test)

A: Backfill soil and backfill sand shall be subjected to layered geotechnical test, and the plan and number of layered sampling points shall be made.

B: Before piling, there should be an intermediate acceptance sheet, a test report on compressive strength and tensile strength of sulfur cement for pile extension, and an acceptance record of the concealed work of welded joint of pile extension. The specific data of pile top elevation and pile axis deviation should be indicated in the completion drawing of pile site acceptance, and the design visa treatment opinions should be given for piles beyond the specified allowable range.

10. Inspection record of foundation trench

After the foundation excavation is completed, the design unit, the construction unit and the construction unit shall jointly carry out the foundation trench inspection. If reinforcement is needed, treatment records and floor plans shall be provided, indicating the treatment location, depth and method, and a re-inspection visa shall be obtained.

1 1. Records of structural hoisting and structural acceptance

1)。 Structural hoisting: Before hoisting, there should be inspection records of axis and elevation. When hoisting, there should be hoisting records, indicating the inspection records such as hoisting model, location, shelving length and fixing method. Subcontract hoisting works shall have structural hoisting acceptance records.

2) structural acceptance record: foundation and foundation works are completed, before backfilling, the main structure is constructed to the top, and before decoration works. According to the "Hu Jian Jianguan (96) No.035" document, the acceptance visa shall be accepted and reported to a qualified quality supervision station for quality inspection of sub-projects After the acceptance, the construction of next working procedure such as backfill soil and decoration can be carried out.

(2) Building heating, sanitation and gas engineering (category 5)

1. Ex-factory certificate of materials and equipment

1), valves of water supply, heat supply and gas pipeline system; Heating boiler, heat exchanger, water pump and fan equipment; Pressure measuring devices and accessories of gas system shall have factory certificates.

2) Heating boilers and heat exchangers shall have pressure vessel production licenses issued by the labor department.

3) Water pump and fan should have dynamic balance inspection report.

4) Fire fighting equipment and materials shall have the approval certificate issued by the Municipal Fire Bureau.

5), рмс pipes and fittings, sanitary ware fittings should have the application license issued by the Municipal Construction Management Office.

2 pipeline and equipment strength, weld inspection and leakage test records

1), strength test record: including single pressure test and system pressure test, and the results meet the design requirements and specifications.

2) Weld inspection records: records of observation inspection, penetration, perspective inspection or photo inspection according to design requirements.

3) Leak test records: including gas pipeline equipment and accessories, valves for cutting off the main pipelines of water supply, heating and hot water systems, and projects with design requirements. Besides leak test, it is also necessary to check whether the test procedures and pressure-boosting and pressure-reducing conditions meet the specification requirements.

3. The system cleans up the records

Pipes and equipment shall be cleaned and descaled before installation, and the pipeline system specified in the design requirements or specifications shall have a record of cleaning and descaling after completion or before commissioning.

4. Drainage pipe irrigation and drainage test records

1), the drainage system should have records of water leakage test by system or section, and the test results meet the design requirements or specifications.

2) Hydrostatic test: including the rated flow of indoor water supply system with the largest number of water distribution points opened at the same time, and the maximum fire extinguishing capacity of hydrant groups; Test records of indoor drainage system, such as discharge effect, meet the design requirements.

5. Boiler drying, boiling furnace and equipment debugging records

1), oven records: including the pipes and equipment of the boiler body and the heat exchange station, the temperature rise and fall records of the flame oven, the oven time and effect should meet the design requirements and specifications.

2) Boiling furnace record: The dosage and composition of boiling furnace, dosing procedure, steam pressure, temperature control, boiling time, cleaning and descaling after boiling furnace should be recorded in detail, and the operators, construction leaders and quality inspectors should have the same visas.

3) Equipment debugging records: including single-machine debugging records of boilers, pumps, fans, gas pressure regulating stations and other equipment, pipelines and accessories and comprehensive debugging records with design requirements. Its operational performance (thermal performance, mechanical performance, pressure and safety performance, etc.). ), water quality, smoke emission, etc. Should comply with the design requirements and relevant special regulations.

(3). Building electrical installation project (Category III)

1. Certificate of major electrical equipment and materials

1), main equipment and materials (such as cabinets, insulators, bushings, lightning arresters, disconnectors, oil switches, transformers, gas relays, thermometers, motors, etc.). ) of the high voltage and power distribution equipment should have a certificate.

2) Other materials such as letter materials, pipes, lamps, switches, insulating oil, bolts, low-voltage equipment and accessories shall have factory certificates.

2. Electrical equipment test and adjustment records

1), before use, the main equipment must be unpacked for inspection and testing, and all kinds of valves and meters should be calibrated; Appearance inspection, adjustment and operation test of various circuit breakers; Inspection and adjustment test of various lightning arresters, capacitors, transformers and accessories, transformers, various motors, cabinets and low-voltage appliances.

2) The projects that need debugging, inspection and adjustment shall have process records, and the projects with design requirements shall have systematic or full-load tests.

3. Insulation and grounding resistance test records

1), insulation resistance test records: including equipment insulation resistance test, line-to-line and line-to-ground test records.

2) Grounding resistance test records: including the test records of protective grounding devices of equipment and systems, lightning protection systems and other grounding electrodes.

(4), ventilation and air conditioning engineering (three categories)

1. Ex-factory certificate of materials and equipment

1), material factory certificate: including all kinds of plates, wires and accessories used for manufacturing or installing air ducts and components; Tubes of refrigeration piping system; Anti-corrosion, thermal insulation and other materials should have the factory certificate.

2), equipment factory certificate: including air handling equipment (muffler, dust collector, etc. ), ventilation equipment (air conditioning unit, heat exchanger, fan coil unit, inducer, ventilator, etc. ), refrigeration equipment (all kinds of refrigerators and their accessories, etc. ), special equipment in each system, etc. , should have the factory certificate.

3) The insulation materials used in the ventilation and air conditioning system shall be accompanied by the inspection report of the fire inspection agency.

4) The fire prevention, smoke exhaust valves and fire fans used in the fire prevention and smoke exhaust system shall have the approval certificate of the municipal fire department.

2. Air conditioning test report

The report covers the single-machine trial operation of various equipment (fans, refrigerators, pumps, air processors, dust removal and filtration equipment, etc.). ), and the determination of joint commissioning without production load. The content and process of determination shall meet the design requirements; The indoor static air dust concentration and indoor positive pressure measured by the cleaning system meet the design and use requirements.

3. Refrigeration pipeline test record

1), strength and tightness test records: valves, equipment and systems should have strength and tightness test records and meet the design and use requirements.

2) Working performance test record: the procedures of pipe fitting valve cleaning, system blowdown, single machine commissioning, vacuum test, leak detection test and load operation meet the design and use requirements.

(5) Elevator installation works (Category III)

1. Insulation and grounding resistance test record

The results of insulation resistance test (equipment, line-to-line, line-to-ground, joint and system) and grounding resistance test (equipment and system protection grounding) shall meet the design requirements and specifications.

2. No-load, full-load and overload commissioning records

Records shall be made according to different load conditions, including vibration, braking, friction and temperature rise with temperature rise limit when starting, running and stopping, as well as the working conditions of related performance devices. Multiple program-controlled elevators should have joint trial operation records.

3. Adjustment and test report

Including the adjustment of various departments and systems (traction, operation, safety protection devices, etc.). ), combined with the trial run of the whole machine test report and trial run records.