青藏铁路螺纹道钉硫磺锚固砂浆工艺研究

Technological research for sulphuric anchor mortar of twisted spikes for Qinghai-tibet railway

青藏铁路施工中适当调整硫磺锚固砂浆配合比和适当改变生产工艺 ,在气温 -4 2 2℃～ 2 3

During construction of Qinghai Tibet Railway,properly adjusting proportioning of sulphuic anchor mortar and changing working technology shall meet the requirements specified by the Technical Specifications under conditions with temperature of -42\^2℃～23\^2℃.