闸室墙混凝土的耐撞磨试验

Test on the impact and abrasion resistance of lock chamber wall concrete

参照洛杉矶磨耗法进行闸室墙混凝土耐撞磨性能的测定和评价。进行了闸室墙混凝土耐撞磨性能、抗冲击性能和抗冲磨性能的研究,得到混凝土撞磨质量损失率和抗压强度的关系曲线。试验结果表明:参照洛杉矶磨耗法测定和评价混凝土的耐撞磨性能科学合理,经济实用;混凝土的耐撞磨性能和抗冲击性能、抗冲磨性能具有较好的一致性;抗压强度越大,混凝土耐撞磨性能越好,可以通过混凝土抗压强度推算其撞磨质量损失率,为船闸混凝土耐撞磨性能的预测提供了参考依据。

The Los Angeles abrasion test is introduced to determine and evaluate the impact and abrasion resistance of lock chamber wall concrete, and it is compared with the drop hammer method and the under-water steel test. The impact and abrasion resistance, impact resistance and abrasion resistance of lock chamber wall concrete are studied, and the curve between the impact and abrasion mass loss rate of concrete and its compressive strength is determined. The results indicate that it is reasonable, scientific, economical and practical to evaluate the impacting and abrasion resistance of concrete with the Los Angeles abrasion test. There exists good consistency between the impact and abrasion resistance, impact resistance and abrasion resistance of concrete. The larger the compressive strength is, the better the impact and abrasion resistance is. The impact and abrasion mass loss rate of concrete can be determined by the compressive strength. These can provide the reference basis for predicting the impact and abrasion resistance of lock chamber wall concrete.