acid resistant concrete additive production process


(PDF) Using concrete admixtures for sulphuric acid resistance

The resistance to sulphuric acid of concrete specimens incorporating these admixtures was measured and compared to that of control specimens. An attempt was made to determine whether there is a ...

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US6660077B2 - Additive for the preparation of ecological ...

An additive for elaboration of ecological permeable concretes. The additive containing from about 24.5% to 28.2% by weight of a mixture made of dispersing agents, from about 3.3% to 3.8% by weight of a humectant agent, from 0 to about 1% by weight of a non ionic surfactant, from 0 to about 3% by weight basis of a bactericidal agent, from about 3.3% to 3.8% by weight of hydroxypropylethyl or ...

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Admixtures and additives for concrete - PCC Group

The resistance to sulphuric acid of concrete specimens incorporating these admixtures was measured and compared to that of control specimens. An attempt was made to determine whether there is a ...

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Using Admixtures to Improve Chemical Resistance of Concrete

Air-entraining admixtures improve sulfate resistance, primarily because air entrainment permits a reduced water-cement ratio that decreases permeability. ACID ATTACK. Because no portland-cement concrete is totally immune to acid attack, admixtures can be used only to slow the rate of deterioration.

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Flooring | Acid-resistant concrete | Plant Services

Now, a breakthrough in concrete technology for precast structures eliminates many of these problems. Scientists at Drexel University developed a high performance, acid and corrosion resistant concrete that is completely free of portland cement. " The corrosive environment in many plants subjects concrete to attack from a wide range of acids ...

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Properties of concrete modified with mineral additives ...

Mineral additives are among the most promising of concrete components in the development of new building materials. •. Replacement of cement with mineral additives can be increased concrete density, compressive strength, freeze-thaw resistance. •. Mineral additives can be used for modification of cementations systems.

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Materials and Structures/Matériaux et Constructions ...

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 modifications of the concrete and the addition of silica fume were issues of the investigation. All concrete mix-

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Composition of materials for production of acid resistant ...

I claim: 1. An acid resistant cement, which comprises: a) a liquid alkali silicate with a SiO 2 to Na 2 O or K 2 O ratio ranging from at least 2.2 to about 3.0:1 and present at about 20% to about 50%, by weight; b) a vitreous silicate present at about 10% to about 50%, by weight, as a hardener; c) a lime containing material present at about 2% to about 20%, by weight, and d) an inert filler at ...

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Using Admixtures to Improve Chemical Resistance of Concrete

Air-entraining admixtures improve sulfate resistance, primarily because air entrainment permits a reduced water-cement ratio that decreases permeability. ACID ATTACK. Because no portland-cement concrete is totally immune to acid attack, admixtures can be …

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Admixtures and additives for concrete - PCC Group

Definitions, requirements, conformity, marking and labelling", an admixture for concrete is a material added during the mixing process of concrete in a quantity not more than 5 % by mass of the cement content of the concrete, to modify the properties of the mix in the fresh and / or hardened state. While a concrete additive is a substance ...

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Contractor raises bar on acid resistant concrete ...

Contractor raises bar on acid resistant concrete structures. Structural fiber reinforced polymer-wise retrofit contractor Composite Construction LLC is targeting corrosion control at this month's MINExpo 2021 in Las Vegas with the unveiling of a concrete formulated to withstand exposure to highly acidic and other corrosive compounds, no ...

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The 23 types of Concrete Admixtures(Additives)used in Concrete

Concrete admixtures refer to the components of concrete that are added immediately before or during the mixing process, except for Portland cement, water and aggregates. Concrete admixtures can improve concrete quality, manageability, accelerate or delay setting time and other properties, and can achieve specific effects by changing these properties.

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(PDF) Development of an Acid Resistant Concrete: A Review

Concrete can be made acid resistant using classical as well as novel techniques like nanotechnology. ... During this process, ... Through the use of various additives, production techniques and ...

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Acid-Resistant Concrete| Concrete Construction Magazine

Acid-Resistant Concrete. Does a mix containing fly ash have resistance to sulfuric acid? Not directly. A wet surface of ordinary concrete exposed to hydrogen sulfide is rapidly attacked because of the evolution of sulfuric acid. Tests have shown that this effect can be almost entirely avoided if the mix contains a proportion of fly ash.

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Composition of materials for production of acid resistant ...

Composition of materials for production of acid resistant cement and concrete and methods thereof . United States Patent 6749679 . Abstract: A cement composition for use in acidic environment containing liquid alkali silicate, vitreous silicate setting agent, lime containing material and inert filler and building materials made therefrom as ...

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ARC Acid Resistant Concrete | ARC Acid Resistant Concrete

Complete Acid Protection Where expensive liners and coatings fail… ARC prevails! ARC Acid Resistant Concrete is industrial-level chemical-resistant concrete that brings ultimate facility protection for mining and other production areas susceptible to ongoing structural damage from highly corrosive chemicals and acids. Start Your Corrosion Control Now Contact an ARC technician today to ...

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CN106396461A - Concrete additive and concrete - Google Patents

The invention discloses a concrete additive and the concrete. The concrete additive comprises the following raw material components: 100 parts of talcum powder, 20 to 30 parts of bentonite, 20 to 30 parts of calcium carbonate, 20 to 30 parts of argil, glass fiber powder recovered from a production workshop, gypsum powder, 20 to 30 parts of an organic solvent and 10 to 20 parts of a monomer ...

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Acid Resistance - Portland Cement Association

Portland cement concrete usually does not have good resistance to acids. Some weak acids, however, can be tolerated, particularly if the exposure is occasional ().There are essentially three ways to improve concrete's resistance to acids, (1) choosing the right concrete composition to make it as impermeable as possible, (2) isolating it from the environment by using a suitable coating or (3 ...

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Resistance to acid attack of concrete with different ...

Two (similar) plain concrete mixes (P1) were prepared in a counterflow pan-type mixer and used to make 223 Resistance to acid attack of concrete with different admixtures or coatings 25 cubes: three for crushing strength determination and the remainder for the acid test. Mix P2 was prepared in a similar manner to mix P1 except that 15 cubes ...

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Sulfuric Acid Resistant Concrete - A200 | Geopolymer Solutions

SULFURIC & GENERAL ACID RESISTANT A200. A200 COLD FUSION CONCRETE is a variable size aggregate concrete material designed specifically for resistance to sulfuric acid degradation in various concentrations ranging from .01% to 98% with little to no mass loss.

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