Effects of curing temperature on cement-stabilized soils

Abstract

Curing temperature is widely known for its effects on the strength of various cementitious-based civil engineering materials, including in stabilized soils. Curing materials at different temperatures can cause negative or positive impacts on the mechanical properties of these materials due to the effect of temperature on hydration behavior, hydration rate, and ion exchange. This paper aims to better understand these factors in geoengineering applications. In particular, the discussion focuses on the effects of curing temperatures ranging from below freezing to 50 °C on the hydration process of cement paste (i.e., hydration rate, mineral dissolution, compressive strength) and the hydration process and strengthening mechanism of cement-stabilized soils. Finally, an informative table listing the advantages and disadvantages of the influences of each temperature level on these materials is provided as a summary of the findings from the literature.

Experiment and Analysis of Variance for Stabilizing Fine-Grained Soils with Cement and Sawdust Ash as Liner Materials

“…There are still some research gaps and challenges in the use of cement and SDA for stabilizing fine-grained soils as clay liner materials, particularly in the context of unconfined compressive strength (UCS), hydraulic conductivity (HC), and volumetric shrinkage strain (VSS). Some research gaps are: the optimal proportion and dosage of cement and SDA for different fine-grained soils and clay liners [19]; the effect of curing time and temperature on the geotechnical properties and microstructure of cement and SDA-stabilized clay liners [20]; cement and SDA-stabilized clay liners' long-term performance and durability under various environmental and loading conditions, such as wetting-drying cycles, freezing-thawing cycles, and chemical attacks [21,22]; the comparison and evaluation of cement and SDA-stabilized clay liners with other types of clay liners, such as geosynthetic clay liners, bentonite-enhanced sand liners, and polymer-modified clay liners [23], and; the economic and environmental feasibility and benefits of cement and SDA-stabilized clay liners in engineering projects [24].…”