Effects of curing on corrosion performance of steel bar in type 1 and type 1P cement concrete using impressed voltage test.

Date

4-2012

Degree

Bachelor of Science in Civil Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Sadia, Dan Michael

Committee Member

Zafra, Richelle G.

Abstract

Deterioration of 20th century reinforced concrete structures has become a major issue in recent years, the problem is associated with the corrosion of reinforcement steel due to carbonation and chloride attack. Type 1 and Type 1P cement are usually used in construction in the Philippines. Performance of Type 1P concrete is explored since it is gaining popularity today. Type 1P is cheaper than Type 1 cement thus, their performance in different curing periods is compared. In this study, the corrosion performance of Type 1 and Type 1P concrete was tested using Impressed Voltage Test (IVT). Both concrete specimens have a water-to-cement ratio of 0.55.Results indicated that longer curing period in both Type 1 and 1P cement concrete increase the resistivity and reduce the permeability of concrete. Also, Type 1P concrete has better performance in both curing periods than Type 1 concrete but their difference is not significant. Having comparable or even better chloride resistance than Type 1 cement, the use of the Type 1P cement is more economical due to its lower price.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology

Call Number

Thesis

Document Type

Thesis

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