Geotechnical evaluation of untreated and cement-treated Ajali Sandstone from southeastern Nigeria

Eze, E.O.; Suoware, O. P.

doi:10.1144/gsl.qjeg.1993.026.02.05

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…However high strength reduction of about 40% was noted when the stabilized mixture was soaked in water even with as much as 10% cement, thus suggested the protection of the pavement from water ingress. [5] Noted that there was significant improvement in the shear strength when 8% cement was used to stabilize the Ajali sandstone soils: soaked CBR value in excess of 100% was obtained.…”

Section: Use Of Cement Stabilization In Thementioning

confidence: 99%

Comparative Analysis of Cement and Lateralite on the Engineering Properties of Niger Delta Soils for Pavement Construction

Alayaki

Al‐Tabbaa

Meshida

et al. 2015

BJAST

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This study investigated the effect of cement and lateralite in improving some engineering properties of Niger Delta soils, classified as clayey soil, silty/clayey sand, and fine sand. Cement had very good effect in reducing the plasticity of the clayey soil and the silty/clayey sand but increased the plasticity of the fine sand, and all the samples had increased soaked CBR and UCS at 28 days especially with 6% and 8% cement contents. 14% lateralite content had the best effect on the silty/clayey sand in reducing the plasticity and increasing both the CBR and UCS. However, no positive effect on the plasticity indices was noticed for the clayey soil and the fine sand, but appreciable increases in their unsoaked and soaked CBR and UCS at 28 days curing. The applications of cement (6% and 8%) and 14% lateralite would make the stabilized soils applicable as sub-base and base materials.

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Section: Use Of Cement Stabilization In Thementioning

confidence: 99%

Comparative Analysis of Cement and Lateralite on the Engineering Properties of Niger Delta Soils for Pavement Construction

Alayaki

Al‐Tabbaa

Meshida

et al. 2015

BJAST

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“…Strength improvements of the studied sabkha soil of as much as ten times have been obtained using lime or cement contents as low as 5%, and improvements in strength of about 20 times have been achieved within only seven days of curing. If, according to Eze & Suoware (1993), acceptable materials for use as road and airfield bases are usually required to have a minimum unconfined compressive strength of 1400kPa after 7 days, then only the 10% lime-and cement-sabkha mixtures could be considered to be suitable. However, if a longer curing period were to be allowed then it may be possible for the lime and cement contents to be reduced to below 10%.…”

Section: Effect Of Water:binder Ratio On Strengthmentioning

confidence: 99%

Stabilization of an arid, saline sabkha soil using additives

Al‐Amoudi

Ibrahim

EI-Naggar

1995

QJEGH

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This paper describes the results of an investigation on the effect of five stabilizing agents, namely limestone dust, marl, emulsified asphalt, cement and lime, on the properties of an arid, saline sabkha soil from eastern Saudi Arabia. Standard compaction and unconfined compressive strength tests were performed, the latter on wrapped specimens that had been allowed to cure for seven days. The results indicated that the density of sabkha mixtures could not be used as a primary criterion in any stabilization programme and the maximum strength of sabkha mixtures was attained at moisture contents much lower than the optimum. Despite the sabkha's coarsegrained nature, neither addition of marl nor of emulsified asphalt gave any significant improvement in the properties of sabkha and the effect of adding limestone dust was marginal. However, the addition of either lime or cement in the range of 2.5 to 10% by weight of soil increased the strength between 2½ and 22 times.

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“…The author then suggested that pavement constructed with the composite must be protected from water. [5] reported effect of cement on sandstone soils which consist of fine to medium sand fraction, 5 -7% silt, and average clay content of 50%. Significant improvement in the density, shear strength, and soaked CBR (value up to 100%) were noted, when about 8% cement was used to stabilise soils.…”

Section: Introductionmentioning

confidence: 99%

Stabilisation of Niger Delta Fat Clay With Blend of Binders for Subgrade Application - Part 1

2017

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Construction of roads on fine-grained soils without any form of stabilisation is a major problem all over the world. In this study, a fat clay having poor subgrade rating (A-7-6) was mixed with blends of sand, drill cuttings ash (DCA), lateralite, and Portland Cement (PC) to improve its plasticity, California Bearing Ratio (CBR), and swell. The sand effected better particle grading of the clay and addition of PC increased its strength. Blends of DCA-PC and lateralite-PC effected friability, improved workability, and also increased the strength of the soil. Blends ratio: sand-PC (4:1); DCA-PC (1:1); and lateralite-PC (2:1) gave the best stabilising effect on the fat clay. The improvements noted were: plasticity index < 30, soaked CBRvalues > 20% after 24 hours and >10% after 96 hours, low swell (0.002 â€“ 0.008%). Thus, this study revealed that the fat clay could be optimised for subgrade application using these stabilising additives.Â http://dx.doi.org/10.4314/njt.v36i3.12

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Geotechnical evaluation of untreated and cement-treated Ajali Sandstone from southeastern Nigeria

Cited by 4 publications

References 2 publications

Comparative Analysis of Cement and Lateralite on the Engineering Properties of Niger Delta Soils for Pavement Construction

Comparative Analysis of Cement and Lateralite on the Engineering Properties of Niger Delta Soils for Pavement Construction

Stabilization of an arid, saline sabkha soil using additives

Stabilisation of Niger Delta Fat Clay With Blend of Binders for Subgrade Application - Part 1

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