Acid Attack on Concrete
Shaik Naseeruddin1, Dumpa Venkateswarlu2, Alamanda Sai Kumar3

1Shaik Naseeruddin, Department of Civil Engineering, Godavari Institute of Engineering and Technology, Rajahmundry (A.P), India.
2 Dumpa Venkateswarlu, Department of Civil Engineering, Godavari Institute of Engineering and Technology, Rajahmundry (A.P), India.
3Alamanda Sai Kumar, Department of Civil Engineering, Godavari Institute of Engineering and Technology, Rajahmundry (A.P), India.
Manuscript received on 01 May 2019 | Revised Manuscript received on 15 May 2019 | Manuscript published on 30 May 2019 | PP: 2339-2343 | Volume-8 Issue-7, May 2019 | Retrieval Number: G6384058719/19©BEIESP
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Abstract: Concrete has been employed in building and it is uncovered to the action of acidic environment for as lengthy as concrete has been used when concrete is to be employed underneath situation in which it will be uncovered to the effect of acids. “Considerations ought to be taken of these effects and appropriate precautions taken. However normally these precautions are not drastic and do no longer contain the decision and use of substances or production of concrete. The outcomes of acid on concrete can also be examined by way of thinking about the characteristics of acid that can impact concrete, the elements of specific concrete contain that might also be affected by way of these factors. The consequences of interaction of acids with concrete and sooner or later the precautions that need to be taken to avoid the undesirable overall performance of the concrete due to its interaction with acids.Concrete is uncovered to sea water is wetted with the aid of a answer of salts basically sodium chloride and magnesium sulphate. Magnesium Sulphate may attack most if no longer all of the elements of hardened Portland cement pastes especially the aluminate constituents. Chloride may reason corrosion of steel and alkaline may take part in alkali aggregate reaction.These concrete exposed with distinct cement (i.e., it need to not be affected by acid) and with non-reactive aggregates embedded with metal included through concrete of low permeability and desirable development practices have to be implemented.” This paper investigates the effect of acidic curing environment on the strength(Compressive strength, Flexural strength, “Split Tensile strength) and durability of M40 grade concrete at different ages cured in water containing various percentages of Hydro chloric acid (HCL) and Sulphuric acid (H2SO4).
Keyword: Acid Attack on Concrete,Hydro Chloric Acid, Sulphuric Acid, Compressive Strength, Split Tensile Strength, Flexural Strength, Durability and Weight loss
Scope of the Article: Concrete Engineering.