The effect of using sanitary ware as aggregates on rendering mortars' performance
The effect of using sanitary ware as aggregates on rendering mortars' performance
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DOI：
10.1016/j.matdes.2015.11.086
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发表时间：
2016-02-05
影响因子：
8.4
通讯作者：
Farinha, C.
中科院分区：
文献类型：
--
作者：
Lucas, J.;de Brito, J.;Farinha, C.
回收陶瓷骨料粉碎卫生洁具，在涂层砂浆，作为砂的替代品，纳入的效果进行了评估。使用这些再生骨料允许在砂浆中整合不可生物降解的废物。这带来了可观的环境效益，既减少了天然砂的开采，也减少了垃圾填埋场的沉积。为了评估卫生洁具废弃物砂浆的性能，开发了一系列实验活动，包括一系列测试，以表征配制砂浆的机械强度，与水相关的行为，耐久性和其他性能。在保持粒径分布不变的情况下，将卫生陶瓷废弃物破碎成集料，进行了4种取代率（0%、20%、50%和100%）的砂取代率试验，结果表明，卫生陶瓷废弃物可以作为集料使用，且不影响砂浆的性能。改性砂浆的许多性能（与卫生陶瓷掺入）具有与常规砂浆类似的性能。此外，它们在机械性能方面显示出改进，特别是弯曲强度和对水蒸气的渗透性。因此，结合不可生物降解的材料作为天然砂的替代物是可能的，并且对于环境和机械性能是有利的。(C)2015爱思唯尔有限公司版权所有。
The effect of the incorporation of recycled ceramic aggregates from crushed sanitary ware, in coating mortars, as replacement of sand, is evaluated. Using these recycled aggregates allows the integration of a non-biodegradable waste in mortars. This brings considerable environmental benefits, both by reducing the extraction of natural sand and the deposits in landfills.To evaluate the performance of the mortars with sanitary ware waste a wide experimental campaign was developed, comprising a series of tests to characterize the behaviour of formulated mortars in terms of mechanical strength, water-related behaviour, durability and other properties. Four replacement ratios were tested (0%, 20%, 50% and 100%) of sand by aggregates from crushing sanitary ware waste keeping the grain size distribution constant.This research reveals that sanitary ware waste can be used as aggregates without affecting the mortars' performance. Many of the properties of the modified mortars (with sanitary ware incorporation) had a similar performance to that of conventional mortar. Furthermore, they showed improvements in terms of mechanical behaviour, in particular of flexural strength, and permeability to water vapour. Thus, the incorporation of a non-biodegradable material as substitute of natural sand is possible and advantageous for the environment and in terms of mechanical performance. (C) 2015 Elsevier Ltd. All rights reserved.