Waste glass is a solid residue usually available near urban centres, where it is discarded after being used as a container for one of several products. Carbide lime (CL) is a by-product of the manufacture of acetylene gas. The present research evaluates the potential of combining these two wastes as a possible hydraulic cement to enhance the behaviour of sands. Pozzolanic reactions occur between silica in its amorphous phases (found in GG) and Ca⁺⁺ (present in CL) in an alkaline environment. The effect of the amount of GG, the CL content and the porosity of the blend on the strength, stiffness and durability of compacted sand–GG–CL mixes is quantified for three distinct sands. An original parameter, termed the porosity/binder index (η/B_iv), can be used to normalise the behaviour of the unconfined compressive strength (q_u), the shear modulus at small strains (G₀) and the accumulated loss of mass (ALM) of the compacted mixes, considering GG + CL as the binder. Results have shown unique normalised tendencies for q_u, G₀ and ALM with η/B_iv for the three studied compacted sand–GG–CL blends, even though each sand has a distinct grain size distribution.

中文翻译：

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磨碎的废玻璃-碳化石灰作为可持续的粘结剂，可稳定三种不同的硅砂

废玻璃是一种固体残留物，通常在城市中心附近可用，在用作某些产品之一的容器后将其丢弃。碳化钙（CL）是乙炔气生产的副产品。本研究评估了将这两种废物作为一种可能的水硬性水泥来增强砂子性能的潜力。火山灰反应发生在碱性环境中的非晶态二氧化硅（在GG中存在）和Ca ⁺⁺（在CL中存在）之间。对于三种不同的沙子，定量了GG含量，CL含量和掺混物孔隙率对压实砂-GG-CL混合砂的强度，刚度和耐久性的影响。原始参数，称为孔隙率/粘合剂指数（η / B _iv），可以将GG + CL用作粘合剂来规范无侧限抗压强度（q _u），小应变（G ₀）下的剪切模量和压实混合物的累积质量损失（ALM）的行为。结果表明，对于三种研究的压实砂-GG-CL混合物，q _u，G ₀和ALM均具有η / B _iv的独特归一化趋势，即使每种砂具有不同的粒度分布。