Characteristics and utilization of sugarcane filter cake waste in the production of lightweight foamed concrete
Characteristics and utilization of sugarcane filter cake waste in the production of lightweight foamed concrete
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DOI：
10.1016/j.jclepro.2016.02.111
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发表时间：
2016-07
影响因子：
11.1
通讯作者：
N. Makul;Gritsada Sua-Iam
中科院分区：
文献类型：
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作者：
N. Makul;Gritsada Sua-Iam
研究了用质量分数分别为0%、5%、10%、15%和20%的焚烧甘蔗滤饼(ISF)取代1型硅酸盐水泥(OPC)的轻质泡沫混凝土(LFC)的性能。在水胶结材(OPC+ISF)比率(W/B)为0.5的情况下，测试了900、1,000和1100 mg/m3的LFC密度。该研究对不同LFC混合物的新鲜度(可涂展性、密度、凝结时间)、机械特性(抗压强度、抗折强度、干燥收缩、气孔率)和功能特性(吸水性、隔热性能)进行了分类。在测试过程中，所有LFC混合物的密度均在规定的容限范围内。对于任何给定的塑料密度，较高的密度比较低的密度获得更大的扩散。与对照LFC试件相比，所有LFC混合料的抗压强度、弯曲强度和干燥收缩都有损失。在功能性质方面，随着ISF含量的增加，混合物的导热系数降低。然而，使用ISF以10%的重量替代水泥的混合物比包括对照混合物在内的其他混合物更容易推广。综上所述，研究结果表明ISF有可能作为生产LFC的原料。
This study investigates the properties of lightweight foamed concrete (LFC), in which Type 1 Portland cement (OPC) was replaced by incinerated sugarcane filter cake (ISF) at 0%, 5%, 10%, 15%, and 20% by weight (wt%). LFC densities of 900, 1,000, and 1100 kg/m3were tested with a water–binder materials (OPC + ISF) ratio (W/B) of 0.5 for all mixtures. The study classifies the fresh (spreadability, density, setting time), mechanical (compressive strength, flexural strength, drying shrinkage, porosity), and functional (water absorption, thermal insulation) characteristics of the respective LFC mixtures. All LFC mixtures achieved a density within the defined tolerance limit during testing. For any given plastic density, a greater spread was obtained at higher than at lower density. Losses of compressive strength, flexural strength, and drying shrinkage were observed in all LFC mixes compared to the control LFC specimens. In terms of functional properties, as the percentage of ISF increased, the thermal conductivity of the mixture decreased. However, mixtures in which ISF was used at 10 wt% replacement for cement were more spreadable than other mixtures, including the control mixture. Overall, the results indicate that ISF has potential to be used as a material in producing LFC.