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COMPARATIVE STUDY OF STRENGTH OF BAMBOO CANE FIBRE CONCRETE BEAM AND REINFORCED CONCRETE BEAM.

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COMPARATIVE STUDY OF STRENGTH OF BAMBOO CANE FIBRE CONCRETE BEAM AND REINFORCED CONCRETE BEAM.

 

ABSTRACT

 

Due to increase in cost of steel reinforcement for the construction of structure concrete. It becomes impressive to investigate other types of material that are cheaper and durable for the construction of a building. This is the reason why an investigation on the use of bamboo as alternative to steel reinforcement in the construction of beam was carried out. Test on the strength of steel and bamboo was carried out by using 3 top and 3 bottom arrangement of bamboo culms splint of 16mm diameter and that of 16mm steel reinforcement were carried out to check the adequacy of the bamboo reinforced concrete after crushing of both steel reinforcement concrete, it was discovered that the strength of 1:2:4 mix of bamboo reinforced concrete is higher than the strength of 1:3:6 steel reinforced concrete.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TABLE OF CONTENTS

 

CONTENTS                                                                                         PAGES

Title Page                                                                                          i

Certification                                                                                                ii

Dedication                                                                                         iii

Acknowledgement                                                                                      iv

Abstract                                                                                            v

Table of content                                                                                vi – viii

 

CHAPTER ONE

1.0     Introduction                                                                                      1 – 2

1.1     Aim of the Study                                                                     3

1.2     Objective of the Study                                                             3

1.3     Scope of the Study                                                                            3

1.4     Limitation of the Study                                                           4

 

CHAPTER TWO

2.0     Introduction                                                                                      5

2.1     Bamboo                                                                                   5 – 6

2.2     Reinforcement                                                                         6 – 7

2.3     Fibre                                                                                        7

2.4     Beam                                                                                       7 – 8

2.5     Mix Design                                                                              8

2.6     Cement                                                                                    8

2.7     Water                                                                                                8 – 9

2.8     Cane Fibre                                                                               9

2.9     Properties of Concrete                                                             9 – 10

 

 

CHAPTER THREE

3.0     Methodology                                                                           11

3.1     Design and Construction of a Beam                                        11

3.1.1  Design of Beam                                                                       11- 14

3.2     Procurement of Materials                                                                  14

3.2.1  Bamboo                                                                                   14

3.2.2  Steel                                                                                        14

3.3     Selection and Preparation of Bamboo                                              15

3.3.1  Preparation of Bamboo                                                           15 – 16

3.4     Spacing of Bamboo Reinforced                                                        17

3.5     Mixing Ratio                                                                           17

3.6     Arrangement of Bamboo and Steel                                         18

3.7     Concrete Preparation                                                              18 – 19

3.8     Slump Test                                                                              19

3.9     Compacting Factor Test                                                                   19 – 20

3.10   Flexural Test in Beams                                                            21

3.11   Curing                                                                                     21

3.12    Flexural Strength of Concrete beam                                                22

 

CHAPTER FOUR

4.0     Analysis of Data, Calculation and Result                                23

4.1     Batching of Materials Used                                                     23

4.2     Flexural Strength Determination                                             23 –  24

4.3     Maximum Load at Failure                                                       24

4.4     Calculation for Flexural Strength                                            24 – 25

4.5     Analysis of Result of Tensile Strength                                    26 – 27

 

 

CHAPTER FIVE

5.1     Conclusion                                                                                        29

5.2     Recommendation                                                                              30

References                                                                                         31

Appendix

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHAPTER ONE

1.0        INTRODUCTION

Bamboo is a natural material found in abundance in tropical Africa with good physical and high mechanical properties.

Bamboo is unique both in tension and compression and has hit its mark in various part of the world as a good structural material. Bamboo for its reputation is therefore introduced as reinforcement in concrete. Bamboo serves as a reinforcement and cane fiber another material with high strength and aspect ratio serve as links. Research into the tensile strength added by bamboo cane fiber to concrete is to be carried out. (Aziz and lee, 2006)

Steel: is very important as building materials used extensively in structural engineering. It is manufactured from Iron ore (mid or quarried in certain part of country). Which is subject to a very high temperature. (Mc kay, 1992).

Concrete is a composite material primarily made up of course aggregate of insert nature and a binding material. The binding material serves the purpose of filling the void with in the aggregate and holding the aggregate together tightly. The aggregate are differentiated by a called grading. Grading is done using sieve analysis (Troxell, 1956).

The binding agent in most cases is Portland cement and it is mixed with portable water to form a paste which is mixed with aggregate to form concrete. Concrete hardness up in a process called setting after being placed with a pre-fabrication form work to form a solid structure material (Ferguson, 1997).

In concrete mixture, the overall proportion of the principle component (cement, fine aggregate, water, coarse aggregate) the binder and aggregate are controlled by the following requirement.

  1. When freshly mixed, the mass must be workable or place able. The properly is referred to as workability and it is dependent on the amount of water present. The more the water beyond the optimum moisture constant, the less the strength and vice-versa.
  2. When the mass hardens, it posses strength and durability adequate for the purpose for which it is intended.
  3. Cost of final product is the minimum possible for the accepted quality.

The above listed requirement summarize the properties of concrete such as strength, elasticity, water tightness resistance to destructive agencies, volume change, creep extensible and thermal properties.

The primary function of all structure is to carry load or to resist applied forces of whatever nature. (Troxell, 1956) defined concrete strength as the ability to carry out the function is dependent on the strength of the structure, as the unit force stress required to cause rupture or upset.

Rupture or upset may be caused by applied tensile stress (failure in cohesion) by applied shearing (sliding) stress or by compressive (rushing) stress.

Concrete is a brittle material which is much weaker intension than in compression. Concrete will bear compression force with in it is carrying capacity. It is not expected to resist direct tensile force due to its low tensile strength and brittle nature. Tension is important because it caused cracking (a form of tensile failure). The weakness of concrete has initiated the need to provide concrete with the tensile strength it lacks. This is done by introducing into concrete as material that has good tensile properties. The most commonly used reinforcement is steel and it has proven very good but for slight flaws such as high cost of procurement and its relative scarcity.

There is need to search for an alternative that is cheap that is in abundance and at the same time locally available (Oyenuga, 2008).

 

 

1.1.   Aim of the Study

The man aim o f the project study is to know how bamboo cane fibre can be used in the absence of steel so as to reduce the cost of production of concrete.

 

1.2.   Objectives of the Study

  1. To reduce the cost of construction material by using another material that can be readily found locally.
  2. To determine the contribution of bamboo-cane fibre to the strength of reinforced concrete to that of bamboo-cane composite.
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