水泥熟料和石灰石对混凝土耐磨性能试验研究

本文通过钢轮试验机在规定条件下,将水泥熟料和石灰石作为磨料,在试件表面产生磨坑,测量试件表面磨坑的长度值等耐磨指标,从而确定仓壁的耐磨能力,为推断在指定时间内磨料对钢筋混凝土筒仓仓壁的磨损程度提供依据。

水泥胶砂及混凝土耐磨性试验机校准及其结果分析与研究

介绍了水泥胶砂及混凝土耐磨性试验机的工作原理和用途,建立了水泥胶砂及混凝土耐磨性试验机校准结果的测量模型,分析了各不确定度分量主要来源,结合测量实例具体数据,对其合成不确定度进行分析评定,对各不确定度分量进行计算并得出合成不确定度和扩展不确定度,最终可得出该项目的校准测量能力,为交通部门提供的技术支撑。

水泥胶砂及混凝土耐磨性试验机测量结果的不确定度分析

对水泥胶砂及混凝土耐磨性试验机转速、运行负荷、尺寸等测量值的不确定度进行了分析评定,并计算出了各个参数测量值的扩展不确定度。

路用粉煤灰水泥混凝土的强度及耐磨性

介绍同时掺入粉煤灰及一种专用减水剂后水泥混凝土抗折强度及耐磨性的试验结果，以及在试验路段中该混凝土的实测强度，说明粉煤灰水泥混凝土的强度及耐磨性均高于相对应的基准混凝土。

露石水泥混凝土路面抗滑衰减规律研究

露石水泥混凝土路面具有较好的抗滑性及抗滑耐久性,通过室内抗滑磨耗试验对露石水泥混凝土路面的抗滑耐久性进行研究,介绍试验方法、试件制作以及试验结果,并对构造深度衰减规律进行讨论。

Compressive strength and abrasion resistance of concrete containing SiO_2 and CuO nanoparticles in different curing media

In the present study,abrasion resistance and compressive strength of concrete specimens containing SiO2 and CuO nanoparticles in different curing media have been investigated.Portland cement was partially replaced by up to 2.0 wt%of SiO2 and CuO nanoparticles and the mechanical properties of the produced specimens were measured.Increasing the nanoparticles content was found to increase the abrasion resistance of the specimens cured in water and saturated limewater,while this condition was not observed for compressive strength in the both curing media.The enhancement of abrasion resistance was higher for the specimens containing SiO2 nanoparticles in both curing media.Since abrasion resistance and compressive strength of the specimens followed a similar regime as the nanoparticles increased for the specimens cured in saturated limewater,some experimental relationships has been presented to correlate these two properties of concrete for this curing medium.On the whole,it has been concluded that the abrasion resistance of concrete does not only depend on the corresponding compressive strength.