American Journal of Civil Engineering and Architecture
ISSN (Print): 2328-398X ISSN (Online): 2328-3998 Website: Editor-in-chief: Dr. Mohammad Arif Kamal
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American Journal of Civil Engineering and Architecture. 2024, 12(2), 24-29
DOI: 10.12691/ajcea-12-2-1
Open AccessArticle

Influence of Water-Cement Ratio on the Strength Distribution inside a Soil-Cement Material

Donzala D. Some1, 2, , Ohindemi G. Yameogo3 and Magai N. Thon4

1Department of Civil Engineering and Architectural Design, Saga University, Saga, Japan

2Ministry in charge of infrastructures, Ouagadougou, Burkina Faso

3Faculty of Exact and Applied Sciences (UFR-SEA), University Joseph Ki-Zerbo, Ouagadougou, Burkina Faso

4Department of Civil Engineering, Yokohama National University, Yokohama, Japan

Pub. Date: March 12, 2024

Cite this paper:
Donzala D. Some, Ohindemi G. Yameogo and Magai N. Thon. Influence of Water-Cement Ratio on the Strength Distribution inside a Soil-Cement Material. American Journal of Civil Engineering and Architecture. 2024; 12(2):24-29. doi: 10.12691/ajcea-12-2-1


In the domain of soil-cement, especially within the deep mixing method (DMM), various factors influence the strength of cement-stabilized soft soils. These factors include soil candidate consistency parameters, cement content, water-cement ratio (W/C), mixing time, and curing time. Notably, a lower W/C ratio resulted in a higher unconfined compressive strength (qu). However, in the context of improving soft and cohesive soils through DMM, a W/C ratio of 1.0 has conventionally been recommended due to its favorable resistance. In the case of the Saga lowland, where a soft cohesive soil with high compressibility and low strength is prevalent, the standard practice employs a W/C ratio of 1.0 with a selective amount of cement for different layers, in most projects. This research introduces an innovative approach: utilizing a higher W/C ratio of 1.5 with a cement content of 110 kg/m³, to fulfill the standard strength requirement and above all, to have a well-distributed strength inside the material. This could prevent the lateral displacement of the soil-cement columns. Through laboratory experiments, this paper investigates the effects of increasing W/C on the strength distribution. As result, the comparison between the needle penetration strength (qunp) /C= 1 and 1.5 showed that the latter represents a slight reduction in strength, but it is more uniformly distributed. This approach is designed to a bolster support for the existing infrastructure in the Saga lowland. The significance of this study in the field of DMM lies in advocating for an increased W/C ratio to ensure not only the quality of the mixture but also, more importantly, the uniformity of strength within the soil-cement columns.

water-cement ratio strength distribution soil-cement material needle penetration index

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