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首页> 外文会议>RILEM Proceedings PRO 40; International RILEM Conference on the Use of Recycled Materials in Buildings and Structures vol.2; 20041108-11; Barcelona(ES) >USE OF RECYCLED CONSTRUCTION MATERIALS FOR MORTAR PRODUCTION
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USE OF RECYCLED CONSTRUCTION MATERIALS FOR MORTAR PRODUCTION

机译：使用再生建筑材料生产砂浆

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摘要

Studies show that the amount of civil construction materials waste is twice as big as the domestic garbage. The society appears to be less worried about debris than domestic garbage because it does not smell and is less toxic. However, as it is not biodegradable, it causes the obstruction of rivers and brooks, when deposited improperly. The substitution of natural resources for recycled materials can be an alternative in mortar production, considering mortar as one of the most used materials in construction, defined as mixtures of sand, a binder such as lime or cement, and water. This research had as objective to study the behavior of mortars with debris addition. The recycled material after previously selection and a main sample is obtained by the produce outlined, granding of aggregate. The proportion used was 1:1:8 (cement: lime: sand), considering different proportions of thin aggregate (debris sand/ natural sand), 100/0; 70/30; 50/50; 30/70; 0/100. The option was to maintain the use of cement, lime e water. The behavior of mortars was evaluated with tests of compressive strength, consistency, absorption and costs for each proportion. The results obtained indicated that mortars with addition of recycled aggregate presented a higher compressive strength compared to the reference mortars (natural sand), the same happened with absorption. The mortars with addition of construction debris showed satisfying results, proving to be a viable option. Another big contribution is the use of residues, avoiding environmental problems.
机译：研究表明，民用建筑材料的浪费量是生活垃圾的两倍。与生活垃圾相比，社会似乎不那么担心杂物，因为它没有气味并且毒性较小。但是，由于它不可生物降解，因此如果沉积不当，会阻塞河流和溪流。考虑到砂浆是建筑中使用最广泛的材料之一，砂浆是沙子，诸如石灰或水泥之类的粘结剂和水的混合物，因此用天然资源代替再生材料可以作为砂浆生产的替代方案。这项研究的目的是研究掺有碎屑的砂浆的性能。预先选择的回收材料和主要样品是通过概述的产品获得的，主要是骨料。考虑到细骨料的不同比例（碎屑砂/天然砂）为100/0，使用的比例为1：1：8（水泥：石灰：沙子）。 70/30； 50/50； 30/70； 0/100。选择是保持使用水泥，石灰和水。通过对每个比例的抗压强度，稠度，吸收性和成本进行测试来评估砂浆的性能。获得的结果表明，与参考砂浆（天然砂）相比，添加再生骨料的砂浆具有更高的抗压强度，吸收时也是如此。添加了建筑碎屑的砂浆显示出令人满意的结果，证明是可行的选择。另一个重要的贡献是残留物的使用，避免了环境问题。

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