Effect of Polymeric Agent on the Strength and Water Stability of Cement-Stabilized Construction Waste Soil

Author:

Li Haoran1ORCID,Gao Peiwei1,Zhang Chen1,Guo Shipeng1,Zhang Jun12

Affiliation:

1. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China

2. College of Aeronautical Engineering, Air Force Engineering University, Xi'an 710043, China

Abstract

Due to the large output of construction waste soils, it has become an enormous challenge for human society and the ecological environment. The purpose of this paper is to discuss the possibility of using a stabilized waste soil in road engineering. Cement and polymer stabilizers were added to the waste soil, and the effect of the stabilizer on the strength and water stability of the stabilized soil was studied. The structure and morphology of the specimens were analyzed using an X-ray diffractometer (XRD) and a scanning electron microscope (SEM). The results show that the unconfined compressive strength increases by 25.0% and the 28-day water stability coefficient, K increases by 59.6% after the addition of the stabilizer. The XRD curve shows that the addition of the new stabilizer does not produce a new characteristic peak, but the diffraction peak strength of some minerals can be improved. SEM shows that the surface of stabilized soil particles is covered by materials, and the particles show obvious agglomeration, forming a network structure, which improves the strength and water stability of the soil.

Funder

Natural Science Foundation of Jiangsu Province

National Natural Science Foundation of China

National Key R & D Program of China

Natural Science Basic Research Program of Shaanxi

Technology Innovation Center Project of Shanxi

CRCC Fourth Engineering Bureau

China Design Group

Suzhou Rail Transit Group Co., Ltd.

Publisher

MDPI AG

Subject

Management, Monitoring, Policy and Law,Renewable Energy, Sustainability and the Environment,Geography, Planning and Development,Building and Construction

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