INTERFACIAL BOND STRENGTH BEHAVIOUR OF STEEL FIBRE REINFORCED CONCRETE AND PLAIN CONCRETE SUBSTRATE
- Project Research
- 1-5 Chapters
- Abstract : Available
- Table of Content: Available
- Reference Style: APA
- Recommended for : Student Researchers
- NGN 5000
ABSTRACT
The quality of the bonded concrete overlay depends on the bonding at the layer’s interface, which is affected by parameters such as fibre inclusion and content in new concrete, moisture condition and surface roughness of old concrete surface. This research presents an experimental study carried-out to assess the interfacial bond strength behaviour of Steel Fibre Reinforced Concrete (SFRC) and Plain Concrete (PC) substrate. The objective of this study is to quantify the interface shear bond strength affected by fibre inclusion and content in new concrete, moisture condition and surface roughness of old concrete surface. Steel wire fibre was incorporated as reinforcing agent in the FRC to determine its effect on bonding strength. To better understand the bonding mechanism at the interface, overlaid square prism specimens were fabricated with three moisture conditions (air dry, SSD, and wet). Five different fibre volume fraction of 0%, 0.5%, 1.0%, 1.5%, and 2.0% were prepared and used as the overlay concrete on three different surface texture (As Cast surface, Grooved surface, and Wire brush surface). It was observed that the bond strength of the FRC samples at all moisture condition (SSD, W and AD) is higher than that of the control specimens in the presence of the three surface texture. The bond strength of FRC with 1% fibre volume was observed to have consequently improved. This improvement is influenced through grooved surface texture at SSD moisture condition of the old concrete surface. Steel fibre of 1.0% produced sample with the highest interfacial bond strength of 15.19N/mm2 . It was observed that, the bond strength of FRC was more than the control specimen. Based on ACI Concrete Repair Guideline, all the roughened surface textures used in this study were able to meet the minimum bond strength it specified. Considering all inferences and appraisals from this research, 1% steel FRC, grooved surface treatment type and SSD surface condition are recommended in the production of retrofitting/repair concretes with the sole aim of achieving an enhanced interfacial shear bond strength.
Related Project Materials
The Effect of Digital Influencer Communication on Nigerian Morphosyntactic Patterns: A Comparative Study of Instagram Posts
Background of the study
Digital influencers in Nigeria have garnered significant followings on social medi...
Design and Implementation of a Learning Disability Identification System for Secondary Schools in Gombe Local Government Area, Gombe State
Background of the study
Learning disabilities (LDs) refer to a variety of challenges that students face in processing infor...
The Effect of Political Recruitment on Leadership Effectiveness in Local Governments: A Study of Sokoto South Local Government, Sokoto State
Background of the Study
Political recruitment plays a fundamental role in determining the quality of leadership within l...
The Impact of Personalized Guest Experiences on Repeat Visits to Luxury Hotels in Jos, Plateau State
Background of the Study
Personalized guest experiences have emerged as a cornerstone of success in the hospitality indus...
An appraisal of the role of social media in security awareness in Bauchi Local Government Area, Bauchi State
Chapter One: Introduction
1.1 Background of the Study
Social media has emerged as a powerful too...
An assessment of real-time digital marketing strategies on customer engagement: A case study of an online streaming service in Kaduna, Nigeria
Background of the study
Real-time digital marketing strategies enable companies to respond swiftly to market trends and co...
An Examination of the Link Between Land Degradation and Food Insecurity in Yobe State
Background of the Study
Land degradation is a significant environmental challenge affecting agricultura...
The Effect of Poverty Reduction Policies on Healthcare Access in Kano Municipal Local Government, Kano State
Background of the Study
In recent years, poverty reduction policies in Nigeria have been increasingly integrated with ef...
An Investigation of the Role of Religious Beliefs in Vaccine Acceptance Among Residents of Gombe State
Background of the Study
Vaccine hesitancy remains a major public health concern in Nigeria, posing significant challenges to immunization...
AN EMPIRICAL ANALYSIS OF THE IMPACT OF DEPOSIT MONEY BANK ON THE MANUFACTURING SECTOR IN NIGERIA (1980-2011)
ABSTRACT
This research study, by means of a robust statistical analysis investigates the impact of deposit money bank on the manufacturin...
