Impact of Polymer Coating on the Flexural Strength and Deflection Characteristics of Fiber-Reinforced Concrete Beams

Impact of Polymer Coating on the Flexural Strength and Deflection Characteristics of Fiber-Reinforced Concrete Beams

DOI: 

https://doi.org/10.30564/jbms.v4i2.5304

Abstract

Liquid polymers (LP) have become an important structural material used in the construction industry in the last decade. This paper investigates the viability of using commercially available LPs as a coating material to improve the flexural strength of fiber-modified concrete beams. The scope included preparing rectangular prism concrete beams with a concrete mixture including fly ash and fiber and coating them with four different liquid polymers at a uniform thickness following the curing process while one set of samples was maintained under the same conditions as a control group without coating. In addition, cylindrical samples were prepared to determine the compressive strength of the concrete mixture. Following the curing process in an unconfined open-air laboratory environment for another 28 days, concrete samples were tested to determine the flexural strength and deflection characteristics under center point loading equipment. The results revealed that all four coating types enhanced both the flexural strength and the average maximum deflection of the beams compared to the control group. While the enhancement in the flexural strength changed approximately between 5% and 36% depending on the coating type, the improvements in average maximum deflections varied between 3.7% and 28.4%. 

Keywords: 

Concrete coating, Liquid polymers, Flexural strength, Deflection, Magnetic induction

Comments

Post a Comment

Popular posts from this blog

Achieving Sustainable Use and Management of Water Resources for Irrigation in Nigeria

Image
Achieving Sustainable Use and Management of Water Resources for Irrigation in Nigeria DOI:  https://doi.org/10.30564/jees.v2i2.2505 Abstract Water resource is available in Nigeria to meet water demand for domestic, agricultural and industrial use. If well enhanced and protected from various source of pollution. However, less information is available on suitability of water resources for irrigation use in Nigeria. This article reviews literature of the past with regards to influence of geogenic and anthropogenic activities on water resource for irrigation purpose in Nigeria and also to explain the current state of suitability of water resource for irrigation studies in Nigeria and gaps in studies. It also summarizes future ways on water resource management and preventive measure for water resource pollution for irrigation use. Related articles were downloaded from Google scholar in water-related issues. This paper tends to review previous article on water resource in Nigeria, and its su
Read more

Quality Models for Open, Flexible, and Online Learning

Image
Quality Models for Open, Flexible, and Online Learning DOI:  https://doi.org/10.30564/jcsr.v2i4.2357 Abstract This article is based on research conducted for the European Commission Education & Training 2020 working group on digital and online learning (ET2020 WG-DOL) specifically regarding policy challenges, such as the following: 1) Targeted policy guidance on innovative and open learning environments under outcome; 2) Proposal for a quality assurance model for open and innovative learning environments, its impact on specific assessment frameworks and its implication for EU recognition and transparency instruments. The article aims to define quality in open, flexible, and online learning, particularly in open education, open educational resources (OER), and massive open online courses (MOOC). Hence, quality domains, characteristics, and criteria are outlined and discussed, as well as how they contribute to quality and personal learning so that learners can orchestrate and take re
Read more