Modifying mechanical properties of Shanghai clayey soil with construction waste and pulverized lime

Autor: Jili Qu, Hao Zhu
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Science and Engineering of Composite Materials, Vol 27, Iss 1, Pp 163-176 (2020)
Druh dokumentu: article
ISSN: 0792-1233
2191-0359
DOI: 10.1515/secm-2020-0016
Popis: In the present study, the effect of construction waste and pulverized lime on the strength of Shanghai clayey soil is investigated. The unconfined compressive strength and direct shear tests have been carried out on reinforced soils with different combinations of construction waste and pulverized lime over various curing periods. The results from unconfined compressive tests show that the compressive strength increases after introduction of construction waste and pulverized lime, and the longer the curing period the higher the strength of treated soil. The results from direct shear tests show that the shear strength parameters increase to different degree after mixing with construction waste and pulverized lime. The tests also show the increase in compressive strength is insignificant with the addition of construction waste alone, but ductility increases. The conclusions drawn from the present study are important not only for designing and construction of geotechnical engineering projects in practice, but also for making good use of waste material, sustainable development and environmental protection.
Databáze: Directory of Open Access Journals