It is mainly reflected in the following aspects. First, the application amount of raw materials is not actually weighed, and the sand and gravel aggregates are not regulated in combination with the actual moisture content; in the operation of concrete batching, the conversion is not carried out in accordance with the specifications, or there is a calculation error in the conversion. , resulting in deviations in the sand-gravel ratio, water-cement ratio, and bone-to-cement ratio, resulting in a low accuracy of construction ratio.
When the water-cement ratio is large, the viscosity of the concrete will be insufficient, and it is not conducive to strengthening the water retention. When the concrete is fully solidified, the excess residual water in the interior cannot be removed in time, which will lead to more blisters of different specifications inside the concrete. , has a negative impact on concrete compaction. When the water-cement ratio is low, it will have a negative impact on the overall fluidity of the concrete, the density value will be reduced, and more pores will appear on the surface. In addition, when the content of sand and gravel in the concrete is insufficient, the fluidity of the concrete will be adversely affected. Concrete bonding ability deviation, water retention can not meet the specified requirements, which will have a negative impact on the construction quality. For example, cement loss, aggregate segregation, etc., are not conducive to the improvement of project construction quality. Coupled with the non-standard control of the slurry-to-bone ratio, it will also have an adverse effect on the quality of concrete.
