الفهرس 
صفحة العنوانOnly 14 pages are availabe for public view
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Abstract
The self-weight of the structural elements is the largest load that take in design and increase in the concrete elements dimensions and the slabs are the main element increase dead load. so, we will used light weight concrete to decrease dead load and decrease straining action. However, it had some problems, the most important of which was its weak resistance to tensile andshear force.To improve its resistance, basalt fibers were added to increase the shear and tensile strength.This was studied in two phases, the first stage. Determining the optimum percentage of basalt fibers in lightweightconcrete. Several concrete mixtures were studied to arrive at the appropriate mixture that gives the lowest possible density of concrete and the greatest compressive strength and tensile strength. In the second stage, ten light-weight reinforced concrete flat slabs were tested with different dimensions, with a different loading type and a different temperature.
2. Objectives
The main objective of this research is to investigate the behavior of light-weight reinforced concrete flat slabs utilizing basalt fibers undertaking the following:
1- Study the behavior (load deflection, load strain, cracking load, failure load, cracks pattern and mode of failure) of light-weight reinforced concrete flat slabs utilizing basalt fibers
2- Compare the behavior of LWC (without basalt fibers) and BLWC (with basalt fibers) flat slabs.
3- Study the effect of fire on the behavior of LWC and BLWC flat slabs.
4- Study the effect of concentric and eccentric load on the behavior of LWC and BLWC flat slabs.
3. Methodology
In order to achieve this objective, the following procedure is adopted:
1- Determine the mechanical properties of the used materials.
2- Study the behavior of light-weight reinforced concrete flat slabs containing basalt fibers when loaded and exposed to fire.
4. Contents
This Thesis consists of seven chapters followed by references as follows:
CHAPTER ONE: INTRODUCTION
This chapter contains a general review, goals and objectives of study, and main contents of the thesis.
CHAPTER TWO: LITERATURE REVIEW
This chapter reviews the available literature on the behavior of light-weight reinforced concrete,as well as the behavior of reinforced concrete flat slabs containing basalt fibers.
CHAPTER THREE: EXPERIMENTAL PROGRAM
This chapter describes the properties of used materials and comparesthem with the limits of the Egyptian code specifications. Also, the test procedures, specimens’ details, the test setup, the studied parameters, and the measurement devices are discussed in this chapter.
CHAPTER FOUR: EXPERIMENTAL TEST RESULTS
This chapter presents the results of the experimental program, which consisted of tenflat slabs tested under concentric and eccentric punchingload.The experimental results included the failure load, crack load, vertical deflection, and crack pattern.
CHAPTER FIVE: ANALYSIS AND DISCUSSION OF RESULTS
This chapter discuss the results and presents comparisons between the different groups and comparison between the experimental results with the theoretical equations of few codes.
CHAPTER SIX: FINITE ELEMENT ANALYSIS
This chapter includes the numerical analysis conducted in the present study using nonlinear finite element software program and a comparison between experimental work and numerical analysis.
CHAPTER SEVEN: CONCLUSIONS AND RECOMMENDATIONS
This chapter includes a brief summary of this study, its conclusions, recommendations, and suggestions for future work.
In addition, this thesis includes references, which represent all used papers and last of researches.