Detected in samples from concrete

Shenzhen Municipal Bureau of Housing and Building Materials Energy Technology announced the news conference last week revealed , followed by the national environmental policy increasingly harsh limit on sand mining has become increasingly strict, the first to rely on early Shenzhen Dongjiang , Xijiang supply markets. After October 2008 ,  portable concrete batching plant , West River are limited exploitation of river sand, sand point from the original scores , causing the Xijiang moment only three . Far from satisfied with river sand supply demand Shenzhen market.
One refused to disclose the names of the first volume of the industry , the Shenzhen river sand to build a rare primary market from Dongguan and Huizhou , Shenzhen, a large area of ??sand in the exercise of  construction machinery  ten years of history , nearly six years, untreated sand rewards and punishments will be used as concrete signs of intensified.
According to the type of skills , necessary for Britain at the end of freshwater rinse sand after processing reward and punishment , talent is used as raw materials of concrete , because the sand to reach the inevitable concentration of chloride ion content , it will corrupt build steel . Evidence at the present scale of constructing sand , sand chloride ion content of the exercise can not be higher than 0.06%.  Screw Conveyor  Construction Bureau once again live a sample of 76 concrete mixing station, 100 sets of samples , the detection of chloride ion content of chloride ions from the concrete samples 0.071% , exceeding the above scale .

Invariance structures cause problems

It is understood that if the top end of the desalination of sea sand and reach the scale of coherent contribution can be used to measure buildings. But without the desalination of sea sand is expressly squeeze exercise . Certificate achievements Ministry in Asphalt Mixing Plant  eclared that " to build on the harsh comments with sand RBI " delineated , sand necessary purification Britain at the end reward and punishment , for the satisfaction of the requirements before the preparation of concrete . Achievements with sand exercised a kind of sand chloride ion content of not higher than 0.01% , the second category of chloride ion content of not higher than the sand of 0.02% , while the minimum requirement of three types of sand, chloride ion content can not be higher than 0.06%. If the chloride ion content higher than 0.06% , that is failing , not at its cement gravel on miscellaneous concrete block making machine like what are invariant structures will cause problems.
China to build a coherent expert at the Institute took over the "Economic Information Daily " reporters hinted risks in its sand is rich in sodium chloride and alkaline , and reinforced around the chloride concentration reaches a critical value, will be born rust . The stainless steel 's life , one becomes thin , hand strength will weaken , tough words are not support even 10 years .

Road maintenance team starting to Lanjiang

Information sent maintenance staff , he said , a year ago, thought so quickly lined maintenance program , is almost impossible . Determine responsibility , investigation, coordination maintenance , concrete batching plant , approved by the leadership , and finally to the maintenance team , usually after two days. And two days, Taipa small child on the road may become a big Taipa son. Now in the QQ group, all aspects of the person who is in , and soon will be able to determine the maintenance program , greatly reducing the various aspects of reporting time . Part of the procedure , you can fix even after the planned schedule to start repair. Officers: Cement silo which way the child will know the group members : see photo will know "speculation " how much asphalt .
11:00 , the reporter with the road maintenance crew departure came Lanjiang found three workers cordon has been opened in the sidewalk and began repairs . Wang Cheng said that the damage was caused by falling foundation settlement , one day encounter a similar situation from 5 to 6 , can be resolved within the general half an hour.

resulted in substandard concrete strength

Knowing pioneering achievements quotient is affordable housing , black heart Guodong enterprises and their managers , should provide concrete achievements in the incorporation of the site failed cement, fly ash , slag, resulting in concrete strength of non-compliance . Reporters learned yesterday, City Court of Final Appeal to produce , sell shoddy products and sentenced to Beijing Hua flying leaps Concrete LLC fines concrete batching plant and sentenced to three years imprisonment manager Wang Guodong six months , and reward and punishment gold 200,000.
Court found that the Department of Beijing concrete , serious and general planning matters . Between January 2010 to May , ready-mixed concrete sign trade treaties, combined housing and commercial housing projects to the Daxing District Jiugong Triangle economic supply of ready-mixed concrete . In the process of supplying the concrete , the unauthorized Concrete mixer  ommon than concrete execution, Juan eliminating the amount of cement , raw materials failed to exercise quality cement, fly ash , slag , etc. , resulting in the supply of ready-mixed concrete compressive strength failed . Trafficking failing concrete C25, C30, C35 three varieties of the total amount of 1532 cubic meters square , for a total sale amount of 38 million yuan.

Two talent scale

1 , the annual output of 100,000 cubic meters of concrete goods over product quality pass.
2 , business manager with more than 5 years experience in engineering RBI incident or have intermediate professional titles ; skills seriously engage people with more than Asphalt Mixing Plant in commercial concrete production incident and have coherent intermediate professional titles ; financial seriously people with intermediate tube account titles . Companies have engineering skills and economic RBI titles less than 15 staff , a strong technical engineering staff in less than 10 people ; engineering skills and strong staff , the staff have intermediate professional titles at least five people.
3, the company registered more than cement mixing machine  cost of gold , net assets of 25 million yuan or more.
4, the business nearly three years, the highest annual income of 30 million yuan project settlement .
5 , with more than two sets of 55 m3 / h with a stirring system , less than 10 concrete trucks , pumps and auxiliary send at least two units. 6 , the enterprise has a concrete special laboratory.