非金属矿
非金屬礦
비금속광
NON-METALLIC MINES
2014年
6期
29-32
,共4页
保温砂浆%玻化微珠%超细粉煤灰%导热系数
保溫砂漿%玻化微珠%超細粉煤灰%導熱繫數
보온사장%파화미주%초세분매회%도열계수
thermal insulation mortar%glass beads%ultra-ifne lfy ash%thermal conductivity coefifcient
针对玻化微珠保温砂浆在矿井内壁应用的局限性，利用单因素实验，并借助各种物理性能测试方法和扫描电镜（SEM）观察，分析了玻化微珠和超细粉煤灰在改善井下固壁砂浆导热性能、强度、耐久性等方面的作用。研究表明，玻化微珠保温轻骨料可有效改善砂浆的导热系数，但同时也会破坏材料的力学性能、耐候性能；超细粉煤灰可以改善材料的导热性、耐久性能以及孔结构，但掺量过多也会显著降低力学性能。保温砂浆的最优配合比是：2%玻化微珠、10%超细粉煤灰、2%可再分散乳胶粉、5%石灰以及1%石膏。
針對玻化微珠保溫砂漿在礦井內壁應用的跼限性，利用單因素實驗，併藉助各種物理性能測試方法和掃描電鏡（SEM）觀察，分析瞭玻化微珠和超細粉煤灰在改善井下固壁砂漿導熱性能、彊度、耐久性等方麵的作用。研究錶明，玻化微珠保溫輕骨料可有效改善砂漿的導熱繫數，但同時也會破壞材料的力學性能、耐候性能；超細粉煤灰可以改善材料的導熱性、耐久性能以及孔結構，但摻量過多也會顯著降低力學性能。保溫砂漿的最優配閤比是：2%玻化微珠、10%超細粉煤灰、2%可再分散乳膠粉、5%石灰以及1%石膏。
침대파화미주보온사장재광정내벽응용적국한성，이용단인소실험，병차조각충물이성능측시방법화소묘전경（SEM）관찰，분석료파화미주화초세분매회재개선정하고벽사장도열성능、강도、내구성등방면적작용。연구표명，파화미주보온경골료가유효개선사장적도열계수，단동시야회파배재료적역학성능、내후성능；초세분매회가이개선재료적도열성、내구성능이급공결구，단참량과다야회현저강저역학성능。보온사장적최우배합비시：2%파화미주、10%초세분매회、2%가재분산유효분、5%석회이급1%석고。
Considering the application limitations of glass beads insulation mortar inside shaft lining in mines, through the single-factor experiments and with the aid of various physical performance test and scanning electron microscopy (SEM) observation to analyze the role of each glass beads and ultraifne ash in the solid wall mortar ,which conclude the thermal conductivity, strength,durability and pore structure of mortar. The results showed that the adulteration of lightweight aggregate glazed hollow bead can effectively improve the thermal conductivity coefifcient, but it will also destroy the material properties of mechanical and weather resistance. The superifne lfy ash can not only improving the durability of the material, but the durability and pore structure. However, too much content can also signiifcantly reduce the mechanical properties. The optimal material mixture ratio determined to be: 2% glazed hollow bead, 10% ultra-ifne lfy ash, 2% re-dispersible powder, 5% lime and 1% gypsum.
