Study on Cement-Treated Soil with RoadCem Additive in Construction of Rural Roads: A Case Study in Viet Nam

Vu, Ba Thao; Ngo, Thi Thanh Huong; Nguyen, Quoc Dung; Ngo, Anh Quan; Ho, Lanh Si

doi:10.1007/978-981-15-0802-8_137

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“…In the State of Amazonas, laboratory tests performed in clayey soils have revealed a gain in simple compressive strength (SCS) tests when adding ZS (RoadCem®) to its composition [70][71][72]. For field application, this additive is used at a low dosage (1.2-2.4 kg/m 3 ) [73]. The dosage of the additive can be increased based on the local conditions, such as the soil characteristics, the time of the opening of traffic, and the climatic conditions present during construction.…”

Section: Stabilization Of Amazonian Soils With Chemical Additivesmentioning

confidence: 99%

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Challenges in the Construction of Highways in the Brazilian Amazonia Environment: Part I – Identification of Engineering Problems

Campelo¹,

Campos²,

Baia³

et al. 2022

Applied Methods in Design and Construction of Bridges, Highways and Roads - Theory and Practice

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The construction of highways in the Brazilian Amazonia Region is always problematic, mainly because it involves environmental obstacles but also technical, economic, and natural challenges. The environmental issues concern the deforestation of the virgin forest and the resulting environmental impacts. The technical ones are related to the natural subgrade, formed by the geologically young alluvial soils that are plastic, being highly compressible or expansive, present in the vast Amazon Basin, whereas the economic issues refer to the final costs of inputs for the construction of the layers of the highway since granular soils and stony materials are located in limited areas that are distant from the work sites, given the geographic immensity of the Brazilian Amazonia. There is also the cost of purging low-bearing capacity soil from the natural subgrade of the highway. Added to all this are the issues of nature, which involve high annual rainfall and the hydrological regime of river flooding and ebbing, which induce the saturation of the pavement layers and the loss of the global geotechnical stability of the compacted earth embankment, respectively. This work points out the Engineering difficulties to be faced in road infrastructure works in the Brazilian Amazon.

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Section: Stabilization Of Amazonian Soils With Chemical Additivesmentioning

confidence: 99%

“…Figure 13. (a) Effect of synthetic zeolite on shrinkage reduction and (b) on SCS gain as a function of dosage (adapted from[73]). …”

mentioning

confidence: 99%

Challenges in the Construction of Highways in the Brazilian Amazonia Environment: Part I – Identification of Engineering Problems

Campelo¹,

Campos²,

Baia³

et al. 2022

Applied Methods in Design and Construction of Bridges, Highways and Roads - Theory and Practice

View full text Add to dashboard Cite

show abstract

Study on Cement-Treated Soil with RoadCem Additive in Construction of Rural Roads: A Case Study in Viet Nam

Cited by 1 publication

References 1 publication

Challenges in the Construction of Highways in the Brazilian Amazonia Environment: Part I – Identification of Engineering Problems

Challenges in the Construction of Highways in the Brazilian Amazonia Environment: Part I – Identification of Engineering Problems

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