CHAPTER ONE
1.1 INTRODUCTION
This work was to present in one weight, the fundamental and practical information in the filed of the comparative analysis of the strength of concrete made from various aggregate which may be useful to people involve in civil and structural engineering and particularly, those that found pleasure in the design and related structure.
Due to the strength/high cost of various aggregate in the market the comparative analysis of strength of concrete indifferent aggregate have revealed that one can definitely substituted in various aggregate by using the mixture design of ration in different aggregate in building to reduce the mixture ration of aggregate or used any of the aggregates.
Where their is no granite stone washed gravel most black gravel is there no black gravel must in such area there will be surface gravel in the project is going to be sited.
A great effort have been made through out this work although it is limited in scope to asses their suitability as stand and concrete aggregate
1.2 PROJECT OBJECTIVE
This case study the comparative analysis of the strength of concrete made from various aggregates.
The project implement the following analysis.
1. To determine the analysis in the existing aggregates and evaluate it’s suitability for use as a good building of aggregates by means of various laboratory tests.
2. To determine the strength of concrete cube in difference aggregates in soil laboratory with a view to have on alternative in the building construction.
3. To effect the reduction of rising in the building construction by using deference aggregates.
1.3 PARTICLE SIZE DISTRIBUTION
It has been stated that maximum size and grading of aggregates are very important find aggregate result in uneconomical mixes where as very coarse –grained soils result in harsh unworkable mixes.
The mean size or grading of many aggregate can be obtained by passing the materials in a set of sieves consisting usually of certain standard sizes. The sieves number is been expressed as the member per inches.
The sieve analysis should also conformed to the B. S. 410of 1969 for sieves for purpose of testing the procedure involve in making sieve analysis should also conform to the B. S. standard method that is involved in carrying out the sieve analysis of time and coarse aggregate.
The aggregate were carefully washed to eliminate dust particles and some other of organics mater present in it so the aggregate should be dust and dust free of any kind. After the wash of aggregate were kept to dry in a place for 24 hours with kept help of electric oven.
The particle were weight and e recorded the % retained passing sieve at each times the graph below shows the result got from…………
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