Concrete pavement construction control and matters needing attention

Ready-mixed concrete is a kind of semi-finished product, through the pouring process to the finished product, which needs construction cooperation, operation technical support and control skills due to environmental changes.

Design production of ready-mixed concrete, want to consider to the professional construction, operation process, the method of vibrating, gasoline ChanXiangZhen, vibration and vibration rolling on the mention of pulp closed flat and advantages and disadvantages of the difference between a vibrating, no conditions, with a bar is the thing, and so on and so forth, although this is existing in the construction of different situation, also need our considering, to improve the knowledge of many sided, make corresponding measures.

Environmental change of maneuverability, such as indoor ground casting with thin thickness, design slump, carriers have no direct shipping, need a second to remove transport, would then take into account the environmental capacity decreases, avoid secondary transportation to car, discharge when the aggregate under the potential energy and inertia, and slurry separation phenomenon, must take concrete with a fast speed, parcel strong state. So the concrete floor mix ratio is not fixed, with strong flexibility.

Slump control: production of concrete, must control slump stability, conducive to the construction of the face of time coherence, consistency, slump fluctuation is big, can cause concrete set time and contraction inconsistent, appear color difference, receive stubble place surface brightness contrast and irregular crack.

Pavement concrete, production ideas from the control of fast flow rate, strong plasticity, in advance of the face time to consider, the construction team is responsible for each face, by the team has vision strength, experienced is responsible for, they will always pay attention to and grasp the time of the face, labor saving, time saving with the original paste finish layer. For the slit time, the relevant information is 250℃/ hour, I after years of experiments and practice summary, think it should be seen as the concrete temperature, all the year round, can be signed, but should not be the environment temperature.