Effect of water-to-cement ratio on the corrosion Performance of Steel Bar in the Type I and Type IP Cement Mortar Using Impressed Voltage Test.

Date

2012

Degree

Bachelor of Science in Civil Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Abstract

Corrosion of steel reinforcement is a slow process and has always been one of the major problems in reinforced concrete structures. The study, however, made use of mortar instead of concrete as the steel cover. It stands on the premise that understanding the performance of mortar would lead to further understanding the behavior of concrete. Impressed Voltage Test (IVT) was used to simulate the corrosion process and to assess the corrosion performance of steel bars in mortar specimens in an accelerated way. Two types of Portland cement, Type I and Type IP, and two water-to-cement ratios, (w/c), 0.50, and 0.60, were utilized in the mortar mixes. Types IP mortars with a w/c of 0.50 were found to be most durable and the least permeable having an average time to initiate first crack of 22.67 days. Altering the type of cement and the w/c was observed to effect on the corrosion performance of mortars.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2012 E63 M33

Document Type

Thesis

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