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 3000
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
EVALUATION OF SOME CHEMICAL CONSTITUENTS OF SELECTED ENERGY DRINKS
Abstract
This research work examined and compares the physicochemical properties and some chemical cons...
INVESTIGATING THE BENEFITS OF EARLY CHILDHOOD EDUCATION ON SUSTAINABLE CONSUMPTION PRACTICES
ABSTRACT: Investigating the benefits of early childhood education on...
ASSESSMENT OF INNOVATIONS IN ASSESSING PRACTICAL SKILLS IN VOCATIONAL EDUCATION
ABSTRACT: Innovations in Assessing Practical Skills in Vocational Education address the need for more effective and accurate methods of evaluating...
THE EFFECTIVENESS OF EARLY CHILDHOOD MENTAL HEALTH PROGRAMS IN PROMOTING SOCIO-EMOTIONAL DEVELOPMENT AMONG PRESCHOOL CHILDREN IN LAGOS STATE
Abstract: This study explores the effectiveness of early childhood mental health programs i...
EFFECT OF DEMONSTRATION METHOD AND GUIDED DISCOVERY METHOD ON THE ACADEMIC PERFORMANCE OF STUDENTS IN BIOLOGY IN SENIOR SECONDARY SCHOOLS
ABSTRACT
The study examined the effects of guided Demonstration method on academic performance of biology students in selected senior sec...
PERCEPTION AND ATTITUDE OF HEALTH CARE WORKERS TOWARDS PROVIDING CONTRACEPTIVES TO UNMARRIED ADOLESCENT IN DABI BAKO HEALTH CARE CENTRE, GWAGWALADA AREA COUNCIL
Background of the Study
Adolescent pregnancy is a worldwide public health issue; the World Health...
A CRITICAL INVESTIGATION OF SAFETY AND SECURITY THREATS IN HOSPITALITY INDUSTRIES IN CROSS RIVERS STATE (A CASE STUDY OF SOME SELECTED HOTELS IN CALABAR)
Background Of The Study
According to Chan (2022), safety is a state in which risks and conditions that...
INFLUENCE OF SEX OF PARENT, TIMING OF LOSS AND AGE OF CHILD ON UNRESOLVED GRIEF AMONG BEREAVED PARENTS
ABSTRACT
This study was carried out to examine the influence of sex of parent...
DESIGN AND IMPLEMENTATION OF INTERNET HOSPITAL LOCATION SYSTEM USING GOOGLE MAPS
ABSTRACT
It is estimated that an average human being will fall ill more than three times every year. People are always l...
AN ANALYSIS OF THE RELATIONSHIP BETWEEN REAL EXCHANGE RATE AND DOMESTIC CONSUMPTION IN NIGERIA (1981-2016)
ABSTRACT
This study analyses the real exchange rate-domestic consumption relationship in Nigeria using the Smooth Transition Autoregressi...
