... of stress, material matrix, and loading patterns. In this study, the nonlinear behaviors of three innovative fly ash-based lightly stabilized industrial waste mixes that are proposed to replace the granular subbase of flexible pavement are characterized and compared in the laboratory and field for the first...

... like bentonite. Therefore, this study attempts to develop a predictive model for SSCC of highly plastic soils based on easily measurable index property, plasticity index ( PI ). Four bentonites and nine bentonite–fly ash mixes were used to encompass soils with a wide range of PI . The results were used...

... and carbon-dioxide emissions associated to Portland cement production encouraged the development of new binders. In this work, alkaline-activated cement (AAC) synthetized by fly ash and an alkaline solution was used to stabilize silty sand. The behavior of the treated soil was evaluated performing tests...

... materials, stabilized with fly ash change after freeze-thaw cycling. Three different types of materials (fine-grained and coarse-grained soils and recycled pavement materials) and five different fly ashes were used at different percentages (10, 12, 14, and 20 % by dry weight). Both one-dimensional and three...

...M. H. Akram; M. A. Gabr The long-term filtration behavior of nonwoven geotextiles with fly ash is investigated using gradient ratio tests [ASTM Test Method for Measuring the Soil-Geotextile Clogging Potential by the Gradient Ratio (D 5101-90)] for the duration of approximately ≈4000 h under...

...B. Ram Rathan Lal; J. N. Mandal Thermal power stations in India produce an enormous quantity of fly ash as a by-product. Fly ash utilization and disposal in an environmental friendly manner is a foremost concern in India. In the present study, an attempt has been made for proper utilization of fly...

... curing time was the primary motivation for this study. Soils stabilized with cement kiln dust and Class C fly ash were collected at five construction sites in Oklahoma. Specimens were prepared at optimum compaction parameters and tested after various curing periods; a total of 58 M R tests were performed...

.... Single oedometer and double oedometer collapse tests and plate load collapse tests were carried out on compacted fly ash (FA), bottom ash (BA), and mixture of fly ash and bottom ash in equal proportion (FA50 + BA50). The results reveal that fly ash is susceptible to collapse, while bottom ash and FA50...

... those of single-layer systems. A laboratory test program was undertaken to evaluate the filtration performance of four different woven/nonwoven geotextile combinations with fly ash and bottom-sea dredged sediments. For comparison, these geomaterials were also tested with two single-woven geotextiles...

...C Zhou; J-H Yin; J-P Ming A series of confined uniaxial compression (oedometer) tests and triaxial compression tests were conducted to study the influence of soaking on the stress-strain characteristics of coal fly ash widely used in Mainland China. The focus was on the collapsibility of fly ash...

...Z Nalbantoglu; E Gucbilmez The calcareous expansive soil in Cyprus has caused serious damage to structures. High-quality Soma fly ash admixture has shown tremendous potential as an economical method for the stabilization of the soil. Fly ash and lime-fly ash admixtures reduce the water absorption...

...), it fails for materials of varying specific gravities. It has been shown that for fly ashes with a wide range of specific gravities the degree of compaction of different fly ashes cannot be compared from conventional compaction parameters. Compaction curves expressed on a volume basis, viz., volume...

...RH Borden; JI Baez Lime slurry pressure injections have been successfully used to stabilize and control swelling and expansive soils and low-strength clay soils to depths of up to 40 ft (12 m). When the activity of soils is somewhat lower, or when soils have large void ratios, lime/fly ash (L/FA...

...DT-T Chang; C-E Chiang; C-Y Chang The need to obtain reliable resilient modulus ( M R ) for fly ash treated subgrade soil in pavement thickness design in Taiwan prompted the modification of the existing standard testing device. In the modified device, a load cell and two linear variable...