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BSR40-14-61 HIGH-RISE BUILDING MORTAR PUMP The effect of cement content on the pumpability of concrete Concrete pumping pressure is conveyed by the liquid material, and liquid material carrying the solid material moves to complete the pumping. There are two roles of cement, one is cementation,...

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BSR40-14-61 HIGH-RISE BUILDING MORTAR PUMP

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The effect of cement content on the pumpability of concrete

Concrete pumping pressure is conveyed by the liquid material, and liquid material carrying the solid material moves to complete the pumping. There are two roles of cement, one is cementation, it keeps the solid material surrounded by liquid material status in the process of the pumping. The second is lubrication, it makes the concrete with mechanical part of the concrete pump, pipelines and concrete internal friction decreases, and it can make the concrete mixture have good mobility. In general, the cement content also has an optimum value. If the cement content is insufficient, it will seriously affect the performance of the pump suction, also it makes the pumping resistance increased significantly, and the concrete water conservation is very poor, it is easily bleeding, segregation and the occurrence of plugging; If the cement content is too large, it will make the concrete viscosity too strong, and increase the pumping resistance. But in principle, it will not affect the pump suction performance when the cement dosage is too large.

 


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