Using the stone waste powder as a cement mixing materials, the early strength of cement was improved, but late strength of cement was reduced.
用废石粉作为水泥混合材时，有利于提高水泥的早期强度，但会使水泥后期强度有所降低。
As the stone waste powder had less the active ingredient, Using the stone waste powder to replace small or all of fly ash would reduce the later strength of the mortar.
由于废石粉中活性成分较少，所以用废石粉部分或全部取代粉煤灰时，会使砂浆后期强度降低。
At the same time, the technology utilizes the broken stone waste materials and stone powder as raw materials, thereby benefiting for the protection and the conservation of natural resources.
同时该技术利用碎石废料及石粉为原料，对保护和节约天然资源大有益处。
When the stone waste powder content raise from 10% to 20%, the workability of the concrete was improved, the early strength of concrete was gradually increased and the later strength was reduced.
当废石粉掺量由10%增加至20%时，混凝土的工作性能均会得到提高，同时混凝土的早期强度也逐渐升高，但混凝土后期强度却会降低。
The significance of using thin type circular diamond sawblade is to reduce cutting width, thus lessening stone resources waste.
使用薄型金刚石圆锯片的意义在于减小切缝宽度，从而降低石材资源浪费。
Steel slag, an industrial waste slag, has been widely used in highway construction gradually for its strength same as natural stone and the properties of expansion.
钢渣，作为一种工业废渣，具有和天然石料一样的强度和具有微膨胀性，已慢慢在道路建设中投入使用。
The tests show part of the waste stone dust instead of sand can improve workability of mortar, reduce mortar contraction and increase compression strength. It is of advantage for construction.
试验表明，废石粉部分取代砂，可以改善砂浆的和易性，减少砂浆收缩，提高抗压强度并有利施工。
The tests show part of the waste stone dust instead of sand can improve workability of mortar, reduce mortar contraction and increase compression strength…
试验表明，废石粉部分取代砂，可以改善砂浆的和易性，减少砂浆收缩，提高抗压强度并有利施工。
Through the analysis on debris source characteristic and the rainfall intensity's influences, obtains the mine waste debris flow in the research area is rainstorm water-stone flow.
通过对物源特征和降雨强度对矿渣型泥石流影响的分析，得出研究区矿渣型泥石流主要为暴雨型水石流。
Leaching from coal and coal waste stone can increase PAHs concentration in mine drainage and groundwater. Pollution of PAHs by coal mining should be attached more importance.
矿坑排水、煤矸石淋滤水及地下水中的多环芳烃与煤层及煤矸石的淋滤有关，煤矿开采引起的多环芳烃污染应引起重视。
The results show that the soluble PAHs existed in coal and coal waste stone.
结果表明，该煤矿区的煤及煤矸石中含有多环芳烃；
The results show that the soluble PAHs existed in coal and coal waste stone.
结果表明，该煤矿区的煤及煤矸石中含有多环芳烃；
应用推荐