Pollutants behaviour and temperature effect on chemical piles treated marine clay

Falling cone method to measure the strength of marine clays

Abstract: An attempt has been made to use falling cone technique for measuring the shear strength of lime treated marine clays. The amount of lime seeped into different lime treated marine clays with duration was estimated, and laboratory vane shear tests were carried out to compare with falling cone strength data. X-ray diffraction (XRD) technique was used to examine the nature of compounds formed in different lime treated soil systems. Test results revealed that strength of different lime treated systems increased by 8 to 10 times of untreated soil. Further the obtained results indicated a linear relationship between the falling cone and laboratory vane shear tests.

An attempt to improve geotechnical properties of some highway lateritic soils with lime Poskus izboljšave geotehničnih lastnosti nekaterih lateritnih tal za ceste z dodajanjem apna

Abstract: An attempt to stabilize some soils from failed sections of the Sagamu–Papalanto road, southwestern Nigeria with lime was undertaken with a view to improve the geotechnical properties of the soils. The soils were treated with 0 % to 20 % by mass of lime, compacted at the Modified AASHTO level and subjected to consistency limits, unconfined compressive strength (UCS) and California bearing ratio (CBR) tests. Increasing content of lime addition resulted in soils with reducing plasticity with an optimum range of 6 % to 8 % while the UCS and CBR increased. Furthermore addition of between 6 % and 10 % of lime produced soils with desirable strength for use as base course materials. However despite the continuous increase in CBR with increasing lime addition, none of the soils meet the unsoaked CBR requirement for use as base course materials. However the soils qualify for use as subbase materials. Thus, it can be concluded that, the soils responded positively to lime addition; however the degree of response and the eventual effect on its suitability for use varied from soil to soil.

Laboratory investigations on the lime stabilization of sensitive clays: shear strength development

Abstract: A laboratory investigation on the quicklime stabilization of sensitive clays has shown that, even at a water content above the liquid limit, significant strength increase can be obtained if enough ...

Reaction of hydrated lime with pure clay minerals in soil stabilization

Abstract: THE USE OF HYDRATED LIME HAS BEEN GROWING IN THE FIELD OF SOIL STABILIZATION ALTHOUGH IT HAS BEEN USED FROM COAST TO COAST IN THE UNITED STATES AND BY SOME NATIONS ABROAD, THE REACTION OF HYDRATED LIME WITH THE SOIL IS STILL A MYSTERY, PARTICULARLY WITH RESPECT TO ITS RELATIVE EFFECTIVENESS AND RATES OF REACTION WITH VARIOUS SOILS A RESEARCH PROJECT TO DETERMINE THE REACTION OF HYDRATED LIME AND SOIL IS UNDER WAY AT THE UNIVERSITY OF ILLINOIS BECAUSE OF THE COMPLEXITY OF SOILS AND BECAUSE LIME IS OF GREATER BENEFIT TO A HEAVY CLAY SOIL, THE FIRST PART OF THE INVESTIGATION HAS BEEN DEVOTED TO A STUDY OF THE EFFECTS OF HYDRATED LIME ON PURE CLAY MINERALS BY THE AID OF X-RAY DIFFRACTION AND DIFFERENTIAL THERMAL ANALYSIS, IT HAS BEEN POSSIBLE TO WATCH AND IDENTIFY THE REACTIONS WHICH TAKE PLACE THE FIRST REACTION, WHICH IS BROUGHT ABOUT IMMEDIATELY WHEN LIME IS ADDED, IS REPLACEMENT OF ABSORBED IONS BY CALCIUM IONS, THE SECOND, FORMATION OF A SERIES OF NEW MINERALS, THE THIRD, CARBONATION OF THE HYDRATED LIME THESE REACTIONS, ILLUSTRATED BY TYPICAL X-RAY EXAMPLES, OFFER DEFINITE PROOF AS TO WHY DIFFERENT RATES OF REACTION OCCUR WITH DIFFERENT SOILS /AUTHOR/

Geotechnical problems involved in foundations of structures in the North Sea

Abstract: Owing to the development of oil and gas fields in the North Sea, the Norwegian Geotechnical Institute has in recent years become involved in extensive investigations of the sea bed. Work has been c...

Combining Industrial Wastes with Lime for Soil Stabilization

Abstract: Using a geotechnical viewpoint, this paper proposes a potential, partial solution to solve some of the problems posed by increasing amounts of certain types of sludgy industrial waste. The primary objective of this study is to examine the potential for burning various industrial wastes combined with lime, in certain proportions, to produce a by-product having cementing characteristics similar to ordinary portland cement (OPC). It is found that the percentages of main cementitious compounds in this new cement-like stabilizer are comparable to those of OPC. The by-product also shows promise for use in stabilizing a loam soil. The contribution of ettringite to strength development is discussed. It is found that this new type of additive can be used to stabilize loam soil for subgrade purposes.