Abstract
Abstract 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.
Highlights
Many regions in the world, especially in alluvial plain and river delta area are prone to geotechnical problems before, during and after construction because of the ground prop-mixing additives with soft soil can be used to effectively improve the properties of soil, including ductility as well as compressive and shear behaviors [7, 8]
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
Considering the huge imprint of construction waste on environment, and the need of recycling waste material to sustainably protect our dwelling environment, the construction waste and the lime are selected as additives to improve the mechanical and physical properties of Shanghai clayey soil, because few researches in the past were focused on these two additives
Summary
Many regions in the world, especially in alluvial plain and river delta area are prone to geotechnical problems before, during and after construction because of the ground prop-. Growing concern over environmental safety has driven researchers worldwide to find more sustainable solutions to these problems and reuse waste materials. Researchers from many countries have worked to find alternative materials for achieving soil stabilization, including the use of several industrial by-products [12,13,14]. Some other researchers are calling for constraining the unbridled production of construction waste from a viewpoint of legislation [16]. Considering the huge imprint of construction waste on environment, and the need of recycling waste material to sustainably protect our dwelling environment, the construction waste and the lime are selected as additives to improve the mechanical and physical properties of Shanghai clayey soil, because few researches in the past were focused on these two additives. It is expected to provide the fundamental data for related design and construction of civil engineering projects
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
