Behaviour of Cement - Natural Rubber Grout in Marine Deposit

Naluvala Nagesh Kumar¹, M Bharath²

¹PG Scholar, ²Assistant Professor, Department of Civil Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, India.

Abstract

Marine deposits are generally clay and sand which are rich in alkalinity. Around the world 6,20,000 kilometres of costal lines are made of marine deposits. These marine sand deposits are fine to very fine grade sand with poor strength, corrosive due to presence of alkali minerals and are highly permeable. These deposits are stabilized by generally deep mixing and grouting with cement, sodium silicate and sodium bentonite. Stabilization can increase the strength and decrease the permeability of these deposits. This phenomenon helps binding of Natural rubber solids in sand. In this paper Stabilization is studied using various proportion of cement, sand and Natural rubber respectively 1:3:0, 1:3:0.01, 1:3:0.02..., 1:3:0.25. Plasticizer was added in the mix to decrease the coagulation process in grout. This work mainly focuses on improving strength and analysis of stress strain behaviour, failure pattern of Cement-Natural rubber grout by conducting UCC and direct shear tests on marine sand deposits and stabilized sand. It is found that on addition of Natural rubber to sand from 10%-25% the stress strain behaviour changes from linear to elasto- plastic. From various tests it is found that significant shear strength of marine deposit reaches 11% on addition of 10% of natural rubber in the grout and the stress-strain behaviour changes from linear to elastoplastic.

Keywords

• Marine Sand Deposits, Grouting, Natural Rubber, Plasticizer, Linear, Elasto-Plastic Behaviour

Author's Profile

Author profile can be generated and linked through our partners World Book of Researchers. To include your profile online Click Here. After it is approved, please email to edlib @ asdf.res.in to create a link with all the papers.

• Naluvala Nagesh Kumar : Profile
• M Bharath : Profile

e-AID

Cite this Article as Follows

Naluvala Nagesh Kumar, M Bharath. Behaviour of Cement - Natural Rubber Grout in Marine Deposit. International Conference on Global Environmental Changes and Sustainable Development (2019): 07. Print.