Determination of the Physical-Mechanical Characteristics of Non-Cohesive Sub-Grade Layers Stabilized with Fly Ash (Part I)

In the execution of the foundation layers and the road base it is necessary to reduce the costs of their construction by using local materials (ballast or crushed stone). In some cases, the physical-mechanical characteristics of the local materials do not satisfy the conditions for dimensioning the...

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Bibliographic Details
Published in:Buletinul Institutului Politehnic din Iași. Secția 6, Construcții, arhitectura Construcții, arhitectura, 2021-12, Vol.67 (4), p.23-41
Main Authors: Gimiga, Gelu Răzvan, Iriciuc, Silviu Cristian, Dima, Diana Nicoleta
Format: Article
Language:English
Subjects:
Aggregates
Case studies
Cost control
Crushed stone
earthworks
Fly ash
Humidity
Hydraulics
Laboratories
lime
Local materials
Mechanical properties
road structures
stabilisation
Tensile strength
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Summary:In the execution of the foundation layers and the road base it is necessary to reduce the costs of their construction by using local materials (ballast or crushed stone). In some cases, the physical-mechanical characteristics of the local materials do not satisfy the conditions for dimensioning the road structure. Therefore, to improve these characteristics, they are stabilized with hydraulic binders (fly ash or various mixtures based on lime and cement). By using hydraulic binders, the aim is to obtain a speed in execution, to increase the physico-chemical and mechanical characteristics of the local aggregates and implicitly to reduce the overall costs of the work (Zarojanu, 1976).
ISSN:2068-4762
1224-3884
2068-4762
DOI:10.2478/bipca-2021-0032