针片状颗粒

利用数字图像处理技术量测针片状颗粒含量

Measuring Percentage of Flat-elongated Particles Based on Digital Image Processing Method

粗骨料中针片状颗粒含量不宜超过4%。

A maximum 4 % of needle and plate particle content is certified .

沥青面层用粗集料针片状颗粒和含泥量技术指标研究

Study on Quality Criteria of Flat and Elongated Particles and Clay Content in Coarse Aggregate for Asphalt Surface Course

但辉绿岩碎石中的针片状颗粒及不良级配导致混凝土的工作性能差，离析泌水严重；

But the elongated and flaky particles in crushed stone and its harmful gradation lead to poor workability , that segregation and weeping of concrete is serious ;

辉绿岩因母岩强度低、呈节理状，致使加工出的碎石针片状颗粒偏大，约12%～15%，且级配不良；

For diabase , the content of elongated and flaky particles in crushed stone is on the high side , about 12 % ~ 15 % and its gradation is harmful .

得到的新产品不是针片状单晶颗粒，而是团粒结构的颗粒，颗粒形状为等积形，表面粗糙，凹凸不平。

This new product is crumb structure instead of platy monocrystal .

粗集料表面特征和针、片状颗粒含量对混凝土抗折强度有较大的影响，影响程度随混凝土强度等级差异而不同；

The influence of coarse aggregate strength on compressive strength and flexural strength are not the same , for low-strength concrete , this difference is the most noticeable ;

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。

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 .