我公司工业车间花岗岩防酸地面试用了沥青石英砂灌缝方法。用此法浇灌花岗石地面108平方米,至今已近三年,使用效果良好,已推广到我厂各车间及供酸系统。这种灌缝方法简单,造价低,使用寿命也较长。一、花岗石块嵌铺花岗石块规格为40×25×12(厘米)或45×225×12(厘米),每平方米约8块。厚度一般为12～13厘米。花岗石块要求上面平整,不存水。花岗石防酸地面基层为原土夯实,插石灌浆,用1:3水泥砂浆找平,24小时后用1:2 The bitumen-quartz sand-sealing method was tested on the granite acid-proof surface of our company’s industrial workshop. This method used to water the granite floor 108 square meters, has been nearly three years, the use of good results, has been extended to our factory workshops and acid supply system. This method of grouting is simple, the cost is low, and the service life is longer. 1. The size of granite block embedded granite blocks is 40 × 25 × 12 (cm) or 45 × 225 × 12 (cm), about 8 blocks per square meter. The thickness is generally 12 to 13 cm. Granite blocks require smooth formation and no water. Granite anti-acid terrestrial grass-roots ground for the original soil compaction, stone grouting, with 1:3 cement mortar leveling, after 24 hours with 1:2