Investigation on the effect of varying dosages of fibrin 23 on the tensile strength and shrinkage of concrete

Date

6-2016

Degree

Bachelor of Science in Civil Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Kimjay M. Lamar

Abstract

Concrete is naturally brittle and has a low tensile strength, thereby making it prone to cracks. Due to this disadvantageous property of concrete, innovative studies regarding fiber reinforcements have been conducted during the past years. This study used FIBRIN 23 as additive to the concrete mix. The recommended dosage of FIBRIN 23 is 0.91 kg per cubic meter of concrete. Aside from the control specimen (0% FIBRIN 23) and this amount (0.91 kg), the experimental design also considered mix proportions with 20 % less and 20% more of this prescribed amount to observe the effect of varying dosage. The studycovered two tests, namely split tensile strength test, and length change test. For the split tensile strength test, a total of 16 cylindrical concrete specimens were cured for 28 days. For the length change test, 16 prismatic specimens were subjected to 7-day wet curing period and 28-day dry curing period. Results of the split tensile strength test indicated that 120% of the recommended amount yielded the highest strength. Also, the computed length change for the prismatic specimens was lowest at 120 % of the prescribed amount. However, statistical analysis, Analysis of Variance in particular, showed that the values between various mix proportions do not differ significantly. Hence, it is recommended for further studies to consider FIBRIN 23 dosages beyond 120 % of the prescribed amount. Doing so can potentially yield more desirable results.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2016 E63 /V37

Document Type

Thesis

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