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首页> 外文期刊>Case Studies in Construction Materials >Lime stabilization for compressed stabilized earth blocks with reduced clay and silt
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Lime stabilization for compressed stabilized earth blocks with reduced clay and silt

机译：用于压缩稳定的地球块的石灰稳定，减少粘土和淤泥

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Compressed stabilized earth blocks (CSEBs) are comparatively new earth-based materials similar to rammed earth, adobe, and bricks. Additionally, CSEBs can overcome the problems of fired bricks. The most common stabilizers used for CSEB production are cement and lime. Lime is environmentally friendlier than cement. This study was performed with the aim of finding the suitability of lime and lime-cement combinations as the stabilizer for CSEB production with reduced clay and silt contents. The soil selected for this study was modified to obtain clay and silt contents of 5 %, 10 %, and 15 %. River sand was used to change the clay and silt contents of the soil. Lime percentages of 5 %, 10 %, and 15 % by weight as the stabilizer were selected. The stabilized blocks were tested for dry density, water absorption, and 28-day wet and dry compressive strengths and were compared with the SLS 1382 standards. Cement-stabilized blocks with 10 % and 8 % cement by weight were prepared for comparison purposes. The study showed that lime alone did not give sufficient properties as specified in SLS 1382. From the percentages tested, 10 % lime showed the maximum performance; hence, this optimum percentage of lime was replaced by cement contents of 3 %, 5 %, and 7 %. Lime-stabilized blocks can be used for single-story buildings, while the combination of lime and cement stabilizers helped to obtain higher compressive strengths than that of lime alone. The other properties of the CSEB also meet all the specification values. Grade 2 block strength was achieved with the contents of 15 % and 10 % clay and silt with 5 % lime: 5 % cement combined stabilizer and 5 % clay and silt contents with 3 % lime: 7 % cement combined stabilizer.
机译：压缩稳定的地球块（CSEBS）是相对新的基于地球的基础材料，类似于夯土，Adobe和砖。此外，CSEBS可以克服燃烧砖的问题。用于CSEB生产的最常见的稳定剂是水泥和石灰。石灰比水泥更友好。该研究是为了发现石灰和石灰水泥组合作为CSEB生产的稳定剂的适用性，具有减少的粘土和淤泥含量。修饰了为该研究选择的土壤以获得粘土和淤泥含量为5％，10％和15％。河砂被用来改变土壤的粘土和淤泥含量。选择稳定剂的5％，10％和15重量％的石灰百分比。测试稳定的块，用于干密度，吸水和28天的湿和干抗压强度，并与SLS 1382标准进行比较。制备用于比较目的的10％和8％水泥的水泥稳定块。该研究表明，单独的石灰在SLS 1382中没有提供足够的性质。从测试的百分比，10％石灰显示出最大性能;因此，这种最佳的石灰百分比被水泥含量置换为3％，5％和7％。石灰稳定的块可用于单层建筑，而石灰和水泥稳定剂的组合有助于获得比单独的石灰更高的抗压强度。 CSEB的其他属性也符合所有规范值。 2级嵌段强度是通过15％和10％粘土和淤泥的含量实现，5％石灰：5％水泥组合稳定剂和5％粘土和淤泥含量，具有3％石灰：7％水泥组合稳定剂。

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