1, guardrail construction before strengthening the quality inspection of products and raw materials, this is a key quality management procedures, refused to comply with any design or technical specification requirements of the product or raw materials into the construction site. Approach the quality of the material components play a key role in the quality of traffic safety facilities, such as signs, such as wave beam guardrail, gelizha quality hidden danger is often not appear during the installation process, but appeared on the approach of component quality, the installation of inspection is relatively easy to control, are more easy to find and correct the defective, but the quality of material in the problem, often not easy to find in a timely manner , usually in the process of use can gradually reveal, therefore, the quality inspection of incoming materials and components is very important.

 

 

 

2. Relevant personnel can visit the supplier's manufacturer before purchasing to confirm the effectiveness of its production equipment capacity, technological level and quality assurance system; In the supply process, can be irregular inspection, in order to ensure that the products provided by the manufacturer qualified; After the product enters the field, the technical personnel should test and inspect according to the provisions of the specification, and confirm that it can be used for installation. When doubts are found, the corresponding test items and frequency can also be increased.

 

 

 

3, the main means are inspection of product quality certificate and site laboratory sampling inspection two, each batch should be strictly implemented the procedure, if necessary, can go to the product processing manufacturer for raw materials and processing technology inspection. Finished product wave beam, for example, after entering the construction site, to check whether there is a production certificate and various technical indicators, and carries on the sampling, inspection, including appearance size thickness inspection, antirust processing inspection, basal steel mechanical properties examination, focus beam sampling waveforms of galvanized plate thickness and thickness and uniformity, because the wave beam plate thickness by 0 each. 1mm, its collision resistance is greatly reduced; The thickness and uniformity of the galvanized layer directly affect the service life of the corrugated beam.

 

 

 

4, if there is a serious situation, must immediately cooperate with the manufacturer to check the processing procedures; The mark board first check whether the bottom material is in line with the relevant provisions, and then test its chromaticity performance, photometric performance, reflection coefficient, luminous intensity coefficient, weather resistance, bending resistance and anti-corrosion treatment. The marking line mainly checks the reflective performance and adhesion of the marking material, and the appearance size and anti-corrosion treatment of the isolation grid are mainly checked.