Dec 19, 2011 | Comments Off
Design of mix proportion In the preparation of concrete，according to the requirements of the engineering, such as workability, strength and durability, the raw materials should be chosen reasonably and the propotion should be confirmed to achieve the economical and applicable purpose. Concrete-mixer According to the different requirements and conditions in construction, the concrete can be concentrated mixed in the construction site or station. Automatic fall type mixer can be used for the concrete mixture whose liquidity is better. Mandatory mixer is used for the concrete mixture ...Read More
...Apr 12, 2010 | Comments Off
What is the reconstruction advantage of old cement concrete pavements. Gravel technology is able to solve the problem reflected the most effective way to crack. 1. Uniform structure is good, construction speed, transformation period is short, comprehensive low cost. 2. Broken by the compaction of the concrete pavement surface attachment, embedded within the form crowded, closely integrated, high-density material layer, a higher structural strength of the grassroots. 3. In-place recycling, environmental pollution, can be broken road directly as a primary or sub-base, subgrade material effect ...Read More
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