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我地区位于浙江省西部山区、新安江水库上游。一方面山区有丰富的岩石资源,可以大力开采使用;另一方面当地由于水库形成后几乎找不到符合质量要求的建筑用砂,所需大量用砂均从安徽省购买。常常因为砂价高,而且运输困难造成停工待料,延误工期。怎样解决这一难题呢?淳安县建筑工程质量监督站和淳安县建筑工程公司试验室协作进行了试验,利用采石场加工石子的下脚料——凝灰岩石粉代替黄砂,与水泥拌合成砂浆。通过数百组不同强度等级的级配,并做成标准试块进行试压,得
Our region is located in the mountains in the west of Zhejiang Province and upstream of Xin’anjiang Reservoir. On the one hand, mountainous regions are rich in rock resources and can be vigorously mined and used. On the other hand, local reservoirs that were found after the formation of reservoirs could hardly meet the quality requirements for construction sand, and a large amount of sand was purchased from Anhui Province. Often because of the high sand price and the difficulties in transportation, work stoppages and delays are required. How to solve this problem? Pan’an County Construction Engineering Quality Supervision Station and Pan’an County Construction Engineering Company’s laboratory collaborated to test the use of quarry processing of stone waste-tuffile rock powder instead of yellow sand, mixed with cement mortar . Hundreds of gradations of different strength levels are used, and standard test blocks are used for pressure testing.