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首页> 外文期刊>Advances in civil engineering >Lightweight Cement Mortars with Granulated Foam Glass and Waste Perlite Addition
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Lightweight Cement Mortars with Granulated Foam Glass and Waste Perlite Addition

机译：具有颗粒状泡沫玻璃的轻质水泥砂浆和废物珍珠岩添加

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This article presents the influence of granulated foam glass (GFG) on thermal insulation and mechanical properties of lightweight cement mortars. The mortars were additionally modified with addition of ground perlite dust. Ground expanded perlite waste was introduced into the cement matrix in the amounts of 10%, 20%, and 30% of cement mass. The results show that application of this waste increases the strength of the mortars as well as decreases their thermal conductivity coefficient. A series of mortars were prepared with introduction of granulated foam glass with mass per unit filler/cement ratio equal to 0.6, 0.9, and 1.2. The aggregate composition of GFG was combined from different monofractions in the range 0-2mm so that it filled the mortar volume to the maximum. Additionally, mortars were made, in which 20% of 0-0.25mm GFG volume was replaced with quartz sand with the same granulation. Each mortar series was modified with addition of ground perlite waste in the amount of 20% of cement mass. The results indicate an improvement of thermal insulation properties along with greater participation of perlite in the mortars. The increase of the thermal conductivity coefficient was observed in the mortars, where the GFG was replaced with quartz sand. Greater amount of GFG results in decrease of compressive strength, but it can be improved by replacing part of the lightweight filler with sand or by introducing the addition of ground expanded perlite to the matrix. This also results in lower water absorption of mortars. Research proved that in most cases, the addition of ground expanded perlite decreased the capillary sorption of mortars, as well as the water absorption coefficient by capillary action, with growing proportion of the lightweight filler.
机译：本文介绍了颗粒状泡沫玻璃（GFG）对轻质水泥砂浆的热绝缘和机械性能的影响。添加迫击炮用加入透射性灰尘进行了修饰。将膨胀的珍珠岩废物引入水泥基质中，含量为10％，20％和30％水泥质量。结果表明，该废物的应用增加了迫击炮的强度，以及降低其导热系数。通过引入粒状泡沫玻璃，每单位填充/水泥比等等于0.6,0.9和1.2，制备一系列砂浆。 GFG的骨料组合物组合在0-2mm范围内的不同单帧中，使其将砂浆体积填充到最大值。另外，制备了砂浆，其中20％的0-0.25mm GFG体积用石英砂替换，具有相同的造粒。每次砂浆系列被修饰，以加入据水泥质量的20％。结果表明，迫长率的珍珠岩中的热绝缘性能提高了热绝缘性能。在迫击炮中观察到导热系数的增加，其中GFG被石英砂替换。更大的GFG导致抗压强度的降低，但是通过用砂层的一部分轻量级填充物或通过引入基质的膨胀的珍珠岩来改善，可以改善。这也导致迫击炮吸水较低。研究证明，在大多数情况下，在大多数情况下，加入膨胀的珍珠岩减少了迫击炮的毛细血管吸附，以及毛细管作用的吸水系数，具有不断增加的轻量级填料的比例。

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