Utilization of paper waste sludge in the building construction industry
Utilization of paper waste sludge in the building construction industry
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DOI：
10.1016/s0921-3449(01)00051-9
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发表时间：
2001-06-01
影响因子：
13.2
通讯作者：
Al-Khaja, W
中科院分区：
文献类型：
--
作者：
Ahmadi, B;Al-Khaja, W
本文报道了利用造纸工业产生的造纸废污泥作为各种混凝土混合物中矿物填料的替代物的调查结果。研究了废弃物的理化性质。混凝土混合物含有各种内容的废物的制备和基本的强度特性，如抗压强度，分裂，弯曲，吸水率和密度进行了测定和比较与控制混合。分别以水泥、砂和骨料的重量比为1：3：6制备含有不同含量的废物（0（对照混合物）、3%、5%、8%和10%）作为细砂的替代物的五种混凝土混合物。试验结果表明，随着废物含量的增加，混合物的水灰比也增加，因为废物具有高度的吸水性。因此，水泥水化需要额外的水。结果表明，随着垃圾量的增加，基本强度，如抗压强度下降。最多5%的废弃物作为混凝土混合物中细砂的替代品，可成功用作建筑材料，例如抗压强度为8 MPa，劈裂强度为1.3 MPa，吸水率为11.9%，密度为20 KN/m（3）（C）2001 Elsevier Science B. V.
This paper reports on the results of an investigation of utilization of paper waste sludge obtained from a paper manufacturing industry, as a replacement to the mineral filler material in various concrete mixes. The physical and chemical properties of the waste material were studied. Concrete mixes containing various contents of the waste were prepared and basic strength characteristics, such as compressive strength, splitting, flexural, water absorption, and density were determined and compared with a control mix. Five concrete mixes containing various contents of the waste, 0 (control mix), 3, 5, 8 and 10%, as a replacement to the fine sand were prepared with ratios of 1:3:6 by weight of cement, sand and aggregate, respectively. The test results revealed that as the content of the waste increased the water to cement ratio for the mix was also increased, since the waste has a high degree of water absorption. Therefore, additional amount of water was required for cement hydration. The results obtained showed that as the amount of the waste increased the basic strengths, such as compressive strength were decreased. A maximum of 5% content of the waste as a replacement to the fine sand in concrete mix can be used successfully as construction materials, such as in concrete masonry construction with a compressive strength of 8 MPa, splitting strength of 1.3 MPa, water absorption of 11.9%, with a density of 20 KN/m(3) (C) 2001 Elsevier Science B.V. All rights reserved.