The study is an investigation into the effects of CDA and Ca (OH)2 on geotechnical properties expansive (Sample A) loose soil B). experiments were designed to adding in various percentages by weight (5%, 15% 15%) dry with 5% constant (OH)2, which produces pozzolanic reactions samples. Sample A was collected at Moniya, Ibadan, B from polytechnic, Ibadan and, cow dung obtained a farm settlement I...

BACKGROUND The use of the lower 90% confidence limit of the lower limit of normal (LLN(CI)), rather than a fixed percentage of the predicted value (LLN(%)), appears to be statistically more appropriate for interpretation of spirometry results. There has been no comparative assessment of these 2 definitions of the LLN in routine clinical practice. METHODS We studied results of spirometry inter...

We study how the behavior of quantum noise, presenting the fundamental limit on the sensitivity of interferometric gravitational-wave detectors, depends on properties of input states of light. We analyze the situation with specially prepared nonclassical input states which reduce the photoncounting noise to the Heisenberg limit. This results in a great reduction of the optimum light power neede...

The leakage of oil products which results in making the soil pollute or impure and alter its physical mechanical properties due to presence hydrocarbons it. Those cannot be passed into through pores become congest on top land. Hence it is necessary indicate know geotechnical contaminated soil. Recently modern technique an encompassing laboratorial system intends encourage improve high level det...

This paper shows the use of dimension stone waste in manufacture soil-cement bricks. Initially, a sample soil was analyzed for mineralogical composition, particle size distribution (classifying it proportion silt, sand, and clay), physical performance by plasticity (Atterberg limits specified standard NBR 7180). A series soil/waste/cement mixtures were prepared with contents up to 90% wt.% wast...

Leaching of arsenic from brick manufactured from arsenic and iron sludge has been investigated in this study. TCLP result shows that leached metal concentrations are far below the regulated TCLP limits and the quantities of metal leached from sludge are less than those from dried sludge. The results of Atterberg limits tests of moulded sludge-clay mixtures indicated that both plastic index and ...

Lime stabilization is one of the techniques that can be used for improving the engineering properties, particularly the strength, of soft clays. This paper aims to investigate the effect of hydrated lime on the strength and microstructure of lime treated clays. In order to illustrate such effect, a series of laboratory tests were conducted. Atterberg limits, compaction tests, unconfined compres...

The aim of this research study was to evaluate the influence of utilising natural polymers as a form of soil stabilization, in order to assess their potential for use in building applications.Mixtures were stabilized with a natural polymer (alginate) and reinforced with wool fibres in order to improve the overall compressive and flexural strength of a series of composite materials. Ultrasonic p...

in this study the performance of clay nano-particles on the soil reinforced with polypropylene fibers (pp-fiber) has been investigated. also a series of investigations concerning the effect of random orientation of fibers on the engineering behaviour of soil were conducted. soil mixtures were modified with varying percentages of nanoclay and fibers. unconfined compressive strength (ucs), compac...

In this study the performance of clay nano-particles on the soil reinforced with Polypropylene fibers (PP-fiber) has been investigated. Also a series of investigations concerning the effect of random orientation of fibers on the engineering behaviour of soil were conducted. Soil mixtures were modified with varying percentages of nanoclay and Fibers. Unconfined compressive strength (UCS), Compac...