摘要
采用南京句容采石厂的碎石与卵石进行试验,分析了粗集料表面特征的差异对混凝土强度的影响,并根据混凝土强度所用鲍罗米公式进行了一元线性回归分析,结果表明:粗集料特征系数的取值对普通混凝土配合比的各项计算结果影响不容忽视,如果有条件或长期采用同一种粗集料,建议采用实测的数据,这样可使混凝土配合比设计值更科学合理。
The paper analyzes the influence of the coarse aggregate5 s surface feature on the concrete strength, adopts the gravel in Jurong Quarry in Nanjing to undertake the test, undertakes the unary linear regression analysis with Paoluomi formula for the concrete strength, and proves by the result that the influence of the value of the coarse aggregate feature coefficient can not be neglected for the calculation results and if the same coarse aggregate is used for a longer period, it is suggested to use the measured data so as to ensure the concrete proportional ratio to be more sci-entific and reasonable.
出处
《山西建筑》
2017年第6期127-128,共2页
Shanxi Architecture
关键词
普通混凝土
粗集料
水胶比
原材料
water-binder ratio, raw material, water-binder ration, raio material
