Journal ArticleDOI
Stabilization of sulfate-containing soil by cementitious mixtures mechanical properties
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In this article, a study was conducted to investigate the cause or causes of the expansion as well as to identify an alternate means of stabilization of CaSO4 gravel from a quarry in Winn Parish in north Louisiana.Abstract:
Winn Rock (CaSO4) gravel from a quarry in Winn Parish in north Louisiana was used extensively as a surface course for local parish roads. Stabilization of these roads with Type I portland cement followed by an overlay of asphaltic concrete resulted in heaving. A study was undertaken to investigate the cause or causes of the expansion as well as to identify an alternate means of stabilization. Specimens of representative soil from the affected area were stabilized in the laboratory using various cementitious materials and were cured using a variety of methods. The mix contained 5% to 20% cementitious material. The cementitious materials were Type I portland cement, lime, and supplementary cementing materials such as granulated blast furnace slag (BFS), Class C fly ash (CFA), silica fume, and an amorphous silica (AS). The uncon-fined compressive strength of the stabilized soil was determined. The effect of size fractions other than the gravel on the expansion was assessed, and the expansion of the specimens...read more
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BookDOI
Characterization of Cementitiously Stabilized Layers for Use in Pavement Design and Analysis
TL;DR: In this article, the characterization of cementitiously stabilized layers and the properties that influence pavement performance are discussed, as well as performance-related procedures for characterizing these layers and performance-prediction models for incorporation into the mechanistic-empirical pavement analysis methods.
Journal ArticleDOI
Soil and clay stabilization with calcium- and non-calcium-based additives: A state-of-the-art review of challenges, approaches and techniques
TL;DR: In this paper, the state of the practice in stabilization techniques and challenges is presented with a discussion, and available studies regarding the effects of various types of stabilizing agents on the engineering and geotechnical properties of stabilized soils are reviewed.
Journal ArticleDOI
Cement Stabilization of Aggregate Base Material Blended with Reclaimed Asphalt Pavement
TL;DR: In this paper, the effects of reclaimed asphalt pavement (RAP) content and cement content on the strength and durability of recycled aggregate base materials typical of the I-84 pavement reconstruction project performed in Weber Canyon near Morgan, Utah, were investigated.
Journal ArticleDOI
Quantification of the effects of nitrates, phosphates and chlorides on soil stabilization with lime and cement
TL;DR: In this paper, the performance of different mixtures in terms of soil stabilization was assessed by performing mechanical tests on samples submitted to several curing conditions (temperature and humidity) and the results showed that the tested compounds are likely to alter the soil stabilization processes and thus lower the mechanical performance of the stabilized soil.
Journal ArticleDOI
Geotechnical properties of lime-treated gypseous soils
TL;DR: In this paper, the effect of a wide range of gypsum content and curing conditions on two important geotechnical properties: the mechanical strength and swell potential of lime-treated fine-grained soil was investigated.
References
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Journal ArticleDOI
Practical problems from surprising soil behavior
TL;DR: In this paper, the aging of quick clay after sampling, the remolded strength increases in samples maintained at constant water content, time effects in freshly densified or deposited sand, in which natural sand deposits can lose strength if disturbed but regain strength over time periods of weeks to months, and apparently sound lime-stabilized soil that swells and disintegrates starting a few years after construction.
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Effects of partial substitution of lime with ground granulated blast furnace slag (GGBS) on the strength properties of lime-stabilised sulphate-bearing clay soils
TL;DR: The use of ground granulated blast furnace slag (GGBS) is well established as a binder in many cement applications where it provides enhanced durability, including high resistance to chloride penetration, resistance to sulphate attack and protection against alkali silica reaction (ASR) as discussed by the authors.
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Sulfate attack on cement-stabilized sand
TL;DR: A 3.5 km (2.2 mi) section of a road in Georgia developed unexpected transverse bumps within 6 months after construction and the source of the bumps appeared to be expansion within the cement-stabilized base course as discussed by the authors.
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Theories of expansion in sulfoaluminate - type expansive cements: Schools of thought
TL;DR: The theories of expansion in sulfoaluminate -type expansive cements are discussed in this paper, where two major schools of thought: the Crystal Growth Theory and the Swelling Theory are presented.
Journal ArticleDOI
Sulfate-Bearing Soils: Problems with Calcium-Based Stabilizers
TL;DR: In this paper, the authors describe several road, airfield pavements, and parking lots in Texas and other states in the western United States that suffered severe pavement damage due to expansive minerals formed from the reactions of calcium-based materials used to stabilize sulfate-bearing soils.