针、片状集料对水泥混凝土若干性能的影响

The Influnce of Elongated and Flaky Particles in Coarse Aggregates on Some Properties of Concrete

本文研究了水泥混凝土用粗集料中针、片状颗粒含量对混凝土混合料的流动性、单轴受压时混凝土的强度、变形和破坏的影响。研究表明，随着粗集料中针、片状颗粒含量的增加。混凝土的上述性能并非都单调变差，粗集料中完全不含针、片状颗粒时，混凝土的上述性能也并非最佳。

The influence of the percentage by weight of elongated and flaky particles in coarse aggregates of concrete on mobility,compressive strength,deformation and fract properties under uniaxial compression is discussed in this paper. It is found that with the increasing of the weight percentage of elongated and flaky particles in coarse aggregates of concrete all above -mentioned properties do not deteriorate,without any elongated and flaky particles in coares aggregates of concrete,these properties would not be optimum as well.