Compressive Strength Changes with Salinity
REPORT
REPORT
CONSTRUCTION MATERIALS & TECHNOLOGY
Study of compressive strength of concrete made using saline water
15th November 2012
CONSTRUCTION MATERIALS & TECHNOLOGY
Study of compressive strength of concrete made using saline water
15th November 2012
CONTENTS
1. Introduction………………………………….2 2. Objectives…………………………………….2 3. Methodology…………………………………3 4. Concrete Making……………………………..4 * Materials and sourcing………………….4 * Moulds…………………………………...4 * Blocks…………………………………….4 5. Compressive strength test…………………….5 * Results and graphs………………………5 6. Discussions and recommendations…………...6 7. References……………………………………..6
INTRODUCTION
Concrete is one of the most commonly used structural materials. It is made by simply mixing cement, aggregate, sand and water in the “right” proportion. The strength of concrete varies even with the slightest variation in the ratio or quality of its ingredients. Concrete properties are highly influenced by the water type used and its proportion in the concrete mix, but actually there is little knowledge of the effects of different, alternative water sources used in concrete mix design. Therefore, the identification of the level and nature of contamination in available water sources and their subsequent influence on concrete properties is becoming increasingly important.
OBJECTIVE
In general, the increasing industrial activity and the rising cost of natural mineral resources, and forcing the ready mixed concrete industry to review the logistics of raw material supply. A lack of potable water, an integral constituent of concrete has resulted in search for possible alternatives. While almost any natural water that is drinkable and has no pronounced taste or odour may be used as mixing water for concrete, the rising cost of such water has prompted many researchers to experiment with salt water in concrete. The
REPORT
CONSTRUCTION MATERIALS & TECHNOLOGY
Study of compressive strength of concrete made using saline water
15th November 2012
CONSTRUCTION MATERIALS & TECHNOLOGY
Study of compressive strength of concrete made using saline water
15th November 2012
CONTENTS
1. Introduction………………………………….2 2. Objectives…………………………………….2 3. Methodology…………………………………3 4. Concrete Making……………………………..4 * Materials and sourcing………………….4 * Moulds…………………………………...4 * Blocks…………………………………….4 5. Compressive strength test…………………….5 * Results and graphs………………………5 6. Discussions and recommendations…………...6 7. References……………………………………..6
INTRODUCTION
Concrete is one of the most commonly used structural materials. It is made by simply mixing cement, aggregate, sand and water in the “right” proportion. The strength of concrete varies even with the slightest variation in the ratio or quality of its ingredients. Concrete properties are highly influenced by the water type used and its proportion in the concrete mix, but actually there is little knowledge of the effects of different, alternative water sources used in concrete mix design. Therefore, the identification of the level and nature of contamination in available water sources and their subsequent influence on concrete properties is becoming increasingly important.
OBJECTIVE
In general, the increasing industrial activity and the rising cost of natural mineral resources, and forcing the ready mixed concrete industry to review the logistics of raw material supply. A lack of potable water, an integral constituent of concrete has resulted in search for possible alternatives. While almost any natural water that is drinkable and has no pronounced taste or odour may be used as mixing water for concrete, the rising cost of such water has prompted many researchers to experiment with salt water in concrete. The
References: 3. Technical report, R306, the effect of salt in concrete on compressive strength, water vapour transmission and corrosion of reinforcing steel, 22 July, 1964