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Time-Dependent Properties of Very High Moisture Content Fine Grained Soils Stabilized with Portland and Slag Cement

机译:用硅酸盐和矿渣水泥稳定的极高水分的细粒土壤的时变特性

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Recently, chemical stabilization applications seem to be expanding, in particular stabilizing finegrained soils with elevated moisture. In this paper, very high moisture soils (VHMS) chemically stabilized with 5% or more cementitious material by total mass are referred to as cemented VHMS, or C-VHMS. This paper's primary objective is to evaluate strength gain of C-VHMS over time and use the measured properties to evaluate usefulness for various applications. A secondary objective is to compare properties of Portland cement to blended Portland and slag cement within C-VHMS. C-VHMS strength properties were reported from mixing through 180 days of curing on two soils. Results showed Portland and slag cement blends were able to produce on the order of 67% of compacted soil-cement (albeit with considerably different total dosage rates) in one of the soils. Overall, C-VHMS, when allowed sufficient curing time, was shown to be more robust than intuition might suggest.
机译:最近,化学稳定化的应用似乎正在扩大,特别是在水分含量较高的情况下稳定细粒土壤。在本文中,用总质量的5%或更多胶凝材料化学稳定的高水分土壤(VHMS)称为胶结VHMS或C-VHMS。本文的主要目的是评估随时间变化的C-VHMS的强度增益,并使用测得的特性来评估其在各种应用中的有用性。第二个目的是比较C-VHMS中波特兰水泥与波特兰水泥和矿渣水泥的性能。据报道,通过在两种土壤上固化180天进行混合,可得出C-VHMS强度特性。结果表明,在其中一种土壤中,波特兰和矿渣水泥混合物能够产生约67%的压实土壤水泥(尽管总掺量率差异很大)。总体而言,当允许足够的固化时间时,C-VHMS被证明比直觉可能更坚固。

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