TY - JOUR
T1 - Experimental investigation on reinforcement effect of sustainable materials for different subgrades
AU - Li, Li Hua
AU - Liu, Shuai-shuai
AU - Xiao, Heng-lin
AU - WU, Pei-chen
AU - FENG, Weiqiang
N1 - Funding Information:
We are thankful for the financial support given by Project from the Science and Technology Planning Project Wuhan (No. 2020020601012278 ), Shenzhen Science and Technology Innovation Commission ( JCYJ20210324105210028 ), the Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ( GML2019ZD0210 ), the grand of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ( K19313901 ). Specially, the authors would thanks to Editor and Reviewers for their valuable work and professional comments.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/4/1
Y1 - 2022/4/1
N2 - Through the physical model tests of subgrades under different working conditions, the feasibility of using waste tires and construction wastes as reinforced subgrades is investigated. The effects of compaction degree, subgrade material and reinforcement type on subgrade performance are studied. The test results show that the increase of compaction degree brings about an increase of the bearing capacity and initial stiffness of subgrades, inducing a settlement reduction. The load-settlement characteristics of construction waste subgrade are better than that of sandy subgrade, especially at a lower settlement. In general, with the development of footing settlement, the bearing capacity of reinforced sandy subgrade gradually exceeds the unreinforced one. With regard to the construction waste subgrade, the reinforced effect of both geocell and waste tire is better under high pressure, and the reinforced effect of waste tires is better than that of geocell under the same condition. Furthermore, construction waste can effectively reduce the uplift of the subgrade surface compared with the sandy soil, and the waste tires can help to redistribute the soil pressure into a wider space.
AB - Through the physical model tests of subgrades under different working conditions, the feasibility of using waste tires and construction wastes as reinforced subgrades is investigated. The effects of compaction degree, subgrade material and reinforcement type on subgrade performance are studied. The test results show that the increase of compaction degree brings about an increase of the bearing capacity and initial stiffness of subgrades, inducing a settlement reduction. The load-settlement characteristics of construction waste subgrade are better than that of sandy subgrade, especially at a lower settlement. In general, with the development of footing settlement, the bearing capacity of reinforced sandy subgrade gradually exceeds the unreinforced one. With regard to the construction waste subgrade, the reinforced effect of both geocell and waste tire is better under high pressure, and the reinforced effect of waste tires is better than that of geocell under the same condition. Furthermore, construction waste can effectively reduce the uplift of the subgrade surface compared with the sandy soil, and the waste tires can help to redistribute the soil pressure into a wider space.
KW - Waste tires
KW - Construction waste
KW - Physical model test
KW - Load-settlement characteristics
KW - Bearing capacity
KW - Sustainable material
UR - http://www.scopus.com/inward/record.url?scp=85125497797&partnerID=8YFLogxK
U2 - 10.1016/j.jclepro.2022.130944
DO - 10.1016/j.jclepro.2022.130944
M3 - Journal article
SN - 0959-6526
VL - 343
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
M1 - 130944
ER -