Topic
Soil stabilization
About: Soil stabilization is a research topic. Over the lifetime, 3161 publications have been published within this topic receiving 48437 citations.
Papers published on a yearly basis
Papers
More filters
••
TL;DR: Shelterbelts were the most effective techniques in sand dune stabilization and soil development when properly sited across wind direction and mechanical fencing was the least effective, probably due to the inadequate quantity of plant residues used in its construction.
Abstract: The low-rainfall ecologies of the northern fringes of Nigeria are prone to desertification and sand dune activities that are phenomenal and extensive. Stabilization structures put in place by various governmental and non-governmental agencies to check desertification in northwestern Nigeria were evaluated with respect to efficiency, impact on soil development and yield of millet. The study focused on the active and stabilized sand dune formations in NW Nigeria. Various stabilization techniques were identified within Gidan Kaura (the study site) and results were compared with an unstabilized sand dune (control site). Results obtained indicated that the sand dunes within the study area are still active despite the numerous stabilization structures, some of which were established over 15 years ago. Shelterbelts were the most effective techniques in sand dune stabilization and soil development when properly sited across wind direction. Shelterbelts recorded significantly higher levels of pH, organic carbon, total nitrogen, exchangeable bases and micronutrients except for copper, when compared with all other treatments. The least effective of all the structures was mechanical fencing, probably due to the inadequate quantity of plant residues used in its construction. The impact of the various structures on the physical and chemical soil properties was evaluated for surface soils as were the structures on the yield of millet in stabilized dunes and non-dune areas. The results are discussed in depth in this paper.
14 citations
••
14 citations
••
TL;DR: It is found that RHA can effectively improve the shear resistance and water resistance of stabilized soil and is attributed to enhanced cohesion by cementation and pores filling with agglomerated mineral.
Abstract: With increased awareness of environmental protection, the output of traditional curing agents such as cement and lime is less and less, so it is urgent to develop new curing agents with high efficiency and environmental benefits. Thus, this study aims at investigating the application of rice husk ash (RHA) from agricultural waste to the soft soil stabilization. A series of tests are conducted to analyze the strength development process and soil-water characteristics of rice husk ash-lime (RHA-lime) stabilized soils. The results of the strength tests showed that by increasing the content of RHA, the unconfined compressive strength (UCS) and splitting strength of stabilized soils increased first and then decreased. The effective shear strength indexes of the three soil types (soft soil, lime-stabilized soil, and RHA-lime soil) are measured and compared. It is found that RHA can effectively improve the shear resistance and water resistance of stabilized soil. The results of methylene blue test demonstrated that RHA can also promote the reduction of the specific surface area and swelling potential energy of lime-stabilized soil. In addition, the influence of RHA on mineral composition and morphology change in stabilized soils is studied at the microscopic level. The X-ray diffraction tests and scanning electron microscope (SEM) tests showed that strength development and change of soil-water properties of RHA-lime stabilized soil are attributed to enhanced cohesion by cementation and pores filling with agglomerated mineral.
14 citations
01 Jan 1966
Abstract: THE REPORT IS DIVIDED INTO FOUR PARTS CONSISTING OF A STUDY OF THE VARIATION IN THE PHYSICAL AND CHEMICAL PROPERTIES OF PULVERIZED FUEL ASH, AN INVESTIGATION OF THE USE OF MIXTURES OF LIME AND P.F.A. AS STABILIZING AGENTS FOR NATURAL SOILS, AN ASSESSMENT OF THE SUITABILITY OF P.F.A. FOR STABILIZATION WITH LIME OR CEMENT, AND AN EXAMINATION OF THE SELF-HARDENING PROPERTIES OF P.F.A. THE INVESTIGATIONS SHOW THAT PULVERIZED FUEL ASH IS SUITABLE FOR USE IN THE CONSTRUCTION OF ROAD BASES AND SUBBASES. IT IS A CHEAP AND READILY AVAILABLE MATERIAL AND ITS USE WILL HELP TO REDUCE THE DEMAND FOR NATURAL AGGREGATE IN GREAT BRITAIN AND AT THE SAME TIME ELIMINATE THE DISPOSAL PROBLEMS THAT ARE ENCOUNTERED AT POWER STATIONS. /RRL/A/
14 citations