Investigation of the Cause and Effect of Air Void Coalescence in Air-Entrianed Concrete Mixes

Author

Gabriel Rene Camposagrado

Issuing Body

Mississippi State University

Advisor

Buchanan, Michael S.

Committee Member

Zhang, Yunlong

Committee Member

White, Thomas D.

Date of Degree

8-7-2004

Document Type

Graduate Thesis - Open Access

Major

Civil Engineering

Degree Name

Master of Science

College

James Worth Bagley College of Engineering

Department

Department of Civil Engineering

Abstract

Air entraining admixtures (vinsol or non-vinsol) are used in concrete mixes that will be exposed to freeze-thaw cycles or sulfate attack. Entrained air is intended to improve the durability and resistance of hardened concrete to freeze-thaw cycles. However in many instances a significant loss of compressive strength has been observed in concrete mixes containing non-vinsol admixtures. Mixture forensic analysis has determined air void coalescing to be the main factor in observed low compressive strengths. The result of air void coalescing is the over design of compressive strength to account for the possible lower strengths and decreased confidence in the compressive strengths obtained during the quality control/assurance process.

URI

https://hdl.handle.net/11668/20262

Comments

air void||coalescence||air entrainment||concrete

Recommended Citation

Camposagrado, Gabriel Rene, "Investigation of the Cause and Effect of Air Void Coalescence in Air-Entrianed Concrete Mixes" (2004). Theses and Dissertations. 2856.
https://scholarsjunction.msstate.edu/td/2856