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

Science and Engineering of Composite Materials

Jili Qu¹  Hao Zhu² 

[1] Associate Professor, School of Environment and Architecture, University of Shanghai for Science & Technology, Shanghai200093, China;Master, School of Environment and Architecture, University of Shanghai for science and Technology, shanghai200093, China;

关键词: recyclable resources;    calcium-based stabilizer;    shanghai clayey soil;    unconfined compressive strength;    direct shear strength;   

DOI  :  10.1515/secm-2020-0016

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown