当前我国铁路线路上铺设的混凝土轨枕越来越多,我局也在逐年增加。在混凝土轨枕上锚固螺旋道钉是采用硫磺锚固,所用的材料主要为硫磺、砂子和水泥,这些材料是重要建筑材料,水泥尤其主要。在我们铁路采石场里,由于粉碎石碴而产生了大量的粉尘(石粉),这些石粉颗粒微小,经筛选后从外观看来和水泥非常相似,能否利用石粉来代替水泥进行锚固呢?从去年开始,我们科研室用石粉代替水泥配制成硫磺石粉砂浆锚固螺旋道钉。经反复试验和比较,我们认为用这种新的锚固剂(硫磺石粉砂浆)锚固螺旋道钉在性能和强度方面完全可以满足使用要求,它是一种价格低廉,性能可靠的新型锚固剂。现将研究结果介绍如下: At present, more and more concrete sleepers are laid on China’s railway lines, and our bureau is also increasing every year. Anchoring screw spikes on concrete sleepers are anchored by sulfur. The materials used are mainly sulfur, sand and cement. These materials are important building materials and cement is especially important. In our railway quarry, a large amount of dust (stone powder) is generated due to the crushing of ballast. These stone powder particles are small in size. After screening, they are very similar in appearance to cement. Can we use stone powder instead of cement for anchoring? Since last year, our research department has used stone powder instead of cement to make sulfur screw mortar anchoring screw spikes. After repeated tests and comparison, we think that the new anchor (sulfur stone mortar) anchoring screw spike in the performance and strength can meet the requirements, it is a low cost, reliable performance of the new anchoring agent. Now the research results are as follows: