effect of acid on concrete

  • Effects of Acid Deposition on Portland Cement Concrete ACS

    Sep 25, 1986 Presented are the results of a program, sponsored by the Environmental Protection Agency, conducted to determine the stateoftheart knowledge pertaining to the effects of acid deposition on the properties of portland cement concrete structures (PCC). Information was collected from a computerized 

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  • acidic corrosion of hydrated cement based CeramicsSilikaty

    deteriorating effects of acidic media (e.g. acidic rains, acidic groundwaters, etc). In spite of the importance of the phenomenon there are relatively few publiions available in the literature compared to the other common types of corrosion of cement based materials. In addition most of the existing publiions also deal.

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  • Response of Concrete to Sulfuric Acid Attack Department of Civil

    tive measures oj concrete response to the acid attack. However, the study suggests that the increase in thickness (expansion) of small specimens (with large surface areatovolume ratios) may be a more consistent measure than the weight loss of larger specimens when comparing the effects of different sulfuric acid 

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  • Resistance of different types of concrete mixtures to sulfuric acid

    The resistance of seven different concrete mixtures against a 0.5% sulfuric acid solution was examined. The difference between high sulfate resistant Portland cement and blast furnace cement, as well as the influence of poly mer modifiions of the concrete and the addition of silica fume were issues of the investigation.

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  • Effect of Hydrochloric Acid (HCl) on Blended Cement (Fly Ash based

    This paper presents the effect of Hydrochloric acid (HCl) on Blended Cement (Fly ash based(BC)) and Silica Fume Blended. Cement(SFBC) and their concretes. The BC and SFBC and their concretes BCC and SFBCC produced with HCl dosage of 100, 150,. 300, 500 and 900 mg/l added in deionised water. In addition to 

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  • Effect of Acidic Water on Strength, Durability and Corrosion of

    Use of poor quality of water in concrete leads to corrosion and ultimately causes failure in concrete, while use of saline water in concrete affects the properties of fresh and hardened concrete. An attempt is made in this study to investigate the effects of various percentage of NaCl present in water used for concreting for 

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  • How Humidity & pH Affect Concrete Degradation Polygon

    The pH level of concrete plays a major role in its strength and durability. When the pH level begins to lower, it can affect the steel around it, causing issues with the building itself.

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  • Effect of sulphuric acid on plasticized concrete NOPR

    Indian Journal of Engineering & Materials Sciences. Vol. 5, October 1998, pp. 291294. Effect of sulphuric acid on plasticized concrete. S Rafeeq Ahmed & N Munirudrappa. Faculty of Engineering Civil, U.V. College of Engineering, Bangaiore University, Jnanabharathi, Bangalore 560 056, India. Received 26 August 1996 

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  • Acid attack on concrete CONCRETE EXPERTS INTERNATIONAL

    Acid Attack on Concrete. Concrete Experts International has extensive, worldwide experience with deteriorated concrete suffering from acid attack caused by acid smoke, rain and exhausting gasses. Diagnosing acid attack is an integrated part of our petrographic analysis of concrete. What is Acid Attack? Concrete is 

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  • Degradation of selfcompacting concrete (SCC) due to sulfuric acid

    Since the proportion of SCC contains higher cement than that of normal concrete, the vulnerability of this concrete to sulfuric acid attack could be reduced by partial replacement of cement with fly ash at high volume level. The effect of high volume fly ash at 5070% cement replacement levels on the extent of degradation 

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  • Influence of various acids on the physico–mechanical properties of

    Abstract. Acidic attack represents a topic of increasing significance, owing to the spread of damages of concrete structures in both urban and industrial areas. Cement type is an important factor affecting performance of cement based materials in an aggressive environment. The goal of this study was to compare the acid 

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  • Effect of acidic environments on cement (PDF Download Available)

    6 days ago The paper presents assessment of the chemical resistance of five concretes containing different binders, including common normal and high early strength cements CEM I ÷ CEM IV and mix of Portland cement and siliceous fly ash, treated with hydrochloric acid. Concrete compositions fulfilled conformity 

    >>READ
  • Response of Concrete to Sulfuric Acid Attack Department of Civil

    tive measures oj concrete response to the acid attack. However, the study suggests that the increase in thickness (expansion) of small specimens (with large surface areatovolume ratios) may be a more consistent measure than the weight loss of larger specimens when comparing the effects of different sulfuric acid 

    >>READ
  • Effect of Hydrochloric Acid (HCl) on Blended Cement (Fly Ash based

    This paper presents the effect of Hydrochloric acid (HCl) on Blended Cement (Fly ash based(BC)) and Silica Fume Blended. Cement(SFBC) and their concretes. The BC and SFBC and their concretes BCC and SFBCC produced with HCl dosage of 100, 150,. 300, 500 and 900 mg/l added in deionised water. In addition to 

    >>READ
  • Acid Resistance Portland Cement Association

    To protect concrete from such severely acidic environments, surface treatments are often used. Many treatments are available and details are given in PCA's Effects of Substances and Guide to Protective Treatment, IS001. German researchers tried to improve the resistance of concrete pipes exposed to longterm acid 

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  • Effect of acid attack on FRPtoconcrete bonded interfaces RMIT

    Sep 20, 2017 Effect of acid attack on FRPtoconcrete bonded interfaces. Hadigheh, S, Gravina, R and Smith, S 2017, 'Effect of acid attack on FRPtoconcrete bonded interfaces' Construction and Building Materials, vol. 152, pp. 285303.

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  • effects of acidity present in water on strength and setting CI Premier

    This paper deals with the effect of hydrochloric acid (Hel) and sulfLiric acid (H2S04) present in mixing water on properties of setting times, compressive strength and tensile strength of cement concrete. The results indie that the initial and final setting times get retarded due to acidity imparted by Hel and H2S04.

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  • Concrete degradation Wikipedia

    Concrete degradation may have various causes. Concrete can be damaged by fire, aggregate expansion, sea water effects, bacterial corrosion, calcium leaching, physical damage and chemical damage This process adversely affects concrete exposed to these damaging stimuli. Contents. [hide]. 1 Aggregate expansion 2 

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  • Concrete Deterioration Caused by Sulfuric Acid Attack

    Apr 20, 2005 attack was investigated considering the effects of the flow of acid solution over the surface of concrete with the intent of proposing a prediction method for the deterioration of concrete due to sulfuric acid. Cylindrical concrete specimens and mortar prisms were immersed in various concentrations of sulfuric.

    >>READ
  • Acid attack on concrete CONCRETE EXPERTS INTERNATIONAL

    Acid Attack on Concrete. Concrete Experts International has extensive, worldwide experience with deteriorated concrete suffering from acid attack caused by acid smoke, rain and exhausting gasses. Diagnosing acid attack is an integrated part of our petrographic analysis of concrete. What is Acid Attack? Concrete is 

    >>READ
  • Effect of acid attack on concrete with different admixtures or

    Different admixtures and coatings were used in an attempt to improve the chemical resistance of a standard concrete mix. The admixtures included pulverised fuel ash, styrene butadiene latex, water reducing, super plasticising, retarding and waterproofing agents. Coatings, including PMMA and polymer emulsions, were 

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  • Acid attack on concrete SlideShare

    Apr 22, 2013 Acid attack on concrete. 1. 2. PRESENTATION OUTLINEIntroductionH2SO4HNO3H2CO3CH3COOHHCLConclusionsObjectivesReferences 3. OBJECTIVESStudy the effect of various acid attacks onconcreteUnderstand the mechanism of each attack and theresponse of concreteStudy 

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  • Concrete Deterioration Caused by Sulfuric Acid Attack

    Apr 20, 2005 attack was investigated considering the effects of the flow of acid solution over the surface of concrete with the intent of proposing a prediction method for the deterioration of concrete due to sulfuric acid. Cylindrical concrete specimens and mortar prisms were immersed in various concentrations of sulfuric.

    >>READ
  • Effect of mineral admixture on resistance to sulphuric and

    Mar 5, 2010 Effect of mineral admixture on resistance to sulphuric and hydrochloric acid attacks in selfcompacting concrete. H. Siad, H. A. Mesbah, H. Khelafi, S. KamaliBernard, M. Mouli. aLaboratoire de Génie Civil et Génie Mécanique (LGCGM), Institut National des Sciences Appliquées, 20 avenue des Buttes de 

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  • Effect of acidic environments on cement (PDF Download Available)

    6 days ago The paper presents assessment of the chemical resistance of five concretes containing different binders, including common normal and high early strength cements CEM I ÷ CEM IV and mix of Portland cement and siliceous fly ash, treated with hydrochloric acid. Concrete compositions fulfilled conformity 

    >>READ
  • effects of acidity present in water on strength and setting CI Premier

    This paper deals with the effect of hydrochloric acid (Hel) and sulfLiric acid (H2S04) present in mixing water on properties of setting times, compressive strength and tensile strength of cement concrete. The results indie that the initial and final setting times get retarded due to acidity imparted by Hel and H2S04.

    >>READ
  • Acid attack on concrete SlideShare

    Apr 22, 2013 Acid attack on concrete. 1. 2. PRESENTATION OUTLINEIntroductionH2SO4HNO3H2CO3CH3COOHHCLConclusionsObjectivesReferences 3. OBJECTIVESStudy the effect of various acid attacks onconcreteUnderstand the mechanism of each attack and theresponse of concreteStudy 

    >>READ
  • Cement Solubility in Acids OnePetro

    Solubility of cement was suspected as a major contributing factor. A literature search was conducted to determine if this problem had been documented elsewhere in the industry.27 Very little information on the effects of acid on cement was found in the oil industry literature. To address this question, lab tests were designed 

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  • Effect of temperature and acidity of sulphuric acid on concrete

    Sciences Research Council, UK) funded investigation the effect of temperature and the. 19 acidity of sulphuric acid solution on concrete specimens extracted from brand new concrete. 20 sewers has been investigated. In this investigation the concrete samples are submerged in. 21 three sulphuric acid solutions (pH = 0.5, 

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  • Behaviour of a Sustainable Concrete in Acidic Environment MDPI

    Sep 1, 2017 This mix also showed the lowest mass loss when exposed to these acids. Keywords: sustainable concrete fly ash ultra fine fly ash sulphuric acid nitric acid. 1. Introduction. The impact of concrete, being one of the most commonly used construction materials worldwide, on sustainability can be significant.

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  • Durability of concrete exposed to sulfuric acid attack Ryerson

    Jan 1, 2010 This thesis investigates the effects of aggressive sulfuric acid attack on the concrete mixtures prepared with metakaolin (MK) and limestone filler (LF) at various replacement levels. In addition, rapid chloride permeability (RCPT), water sorptivity, water porosity and rapid freezing and thawing tests were also 

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