The benefits of using manufactured sand with cement for peat stabilisation: An experimental investigation of physico-chemical and mechanical properties of stabilised peat
The benefits of using manufactured sand with cement for peat stabilisation: An experimental investigation of physico-chemical and mechanical properties of stabilised peat
复制标题
使用机制砂和水泥进行泥炭稳定的好处：稳定泥炭的物理化学和机械性能的实验研究
DOI：
10.1007/s10064-020-01823-w
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发表时间：
2020
影响因子：
4.2
通讯作者：
Shen Linfang
中科院分区：
文献类型：
--
作者：
Wang Jingyu;Li Miao;Wang Zhiliang;Shen Linfang
由于泥炭中有机物含量高，以及相关的不利环境和经济影响，传统的水泥土壤稳定方法受到泥炭的挑战。这项研究探讨了使用机制砂的潜力和好处，机制砂是一种经济，易于获得和环保的建筑材料，与水泥一起用于泥炭稳定。为了研究机制砂和水泥的最佳用量，进行了实验，如稳定泥炭的物理化学和机械质量的改善所证明的。以工程实际要求的强度1.00MPa为基础，确定了机制砂与泥炭的最佳配比为5：5，水泥掺量为36.15%。在最佳配置下，稳定泥炭的无侧限抗压强度是2.33倍以上的标本没有沙子，和孔隙比从1.72天然泥炭减少到小于0.58。优化配置可使水泥用量减少36.36%，碳排放减少36.36%，成本降低38.28%。这项研究表明，使用机制砂与水泥提供了一个经济，有效和环保的工程解决方案，泥炭稳定。
The traditional use of cement for soil stabilisation is challenged by peat due to the high organic content in peat and the associated unfavourable environmental and economic impacts. This study explores the potential and benefits of using manufactured sand, an economical, easily accessible and environmentally friendly construction material, with cement for peat stabilisation. Experiments were conducted with a view to investigating the optimal dosage of manufactured sand and cement, as evidenced by the improvement in the physico-chemical and mechanical qualities of stabilised peat. Based on the required strength of 1.00 MPa in engineering practice, an optimal configuration was determined with the ratio of manufactured sand to peat being 5:5, and the cement content 36.15%. At the optimal configuration, the unconfined compressive strength of stabilised peat was 2.33 times greater than the specimens without sand, and the void ratio was reduced from 1.72 of natural peat to less than 0.58. Optimal configuration can reduce cement dosage by 36.36%, hence carbon emissions by 36.36%, and costs by 38.28%. This study established that using manufactured sand with cement offered an economical, efficient and environmentally friendly engineering solution to peat stabilisation.