坍落度是混凝土和易性的测定方法与指标,工地与实验室中,通常是做坍落度试验测定拌合物的流动性,并辅以直观经验评定粘聚性和保水性。坍落度是用一个量化指标来衡量其程度的高低,用于判断施工能否正常进行。
Through variance analysis, the influence of every factor to slump of fresh concrete, compressive strength, splitting tensile strength is known.
通过极差分析和方差分析,明确了各因素对新拌混凝土坍落度、28d抗压强度和28d劈拉强度等力学性能的影响。
参考来源 - 钢/聚丙烯混杂纤维混凝土的试验研究Ultra-fine sand pumping water reducer in concrete mixing units can cementitious material consumption and reduce the dosage,and slump remain the same.
特细砂泵送混凝土中掺加减水剂能使单位用水量和胶凝材料用量减小,而坍落度保持不变。
参考来源 - 水工特细砂泵送混凝土压力泌水率研究与应用·2,447,543篇论文数据,部分数据来源于NoteExpress
一般来说,应使用中度坍落度混凝土。
检验了坍落度、流动性、综合强度和氯离子扩散作用。
Slump, slump flow, comprehensive strength and chlorine diffusion are tested.
适当的掺量可减少混凝土坍落度的经时损失,提高混凝土强度。
Results indicate that proper quantities of ultra-fine limestone flour can help engineers to decrease the time-loss of concrete slump constant and to increase concrete strength.
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