calcium chloride cement and their properties

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Effect of calcium chloride on the hydration ...

Effect of CaCl 2 on the hydration characteristics of the different cement pastes using ordinary Portland cement (OPC) and blended Portland cement with ground clay bricks (GCB) was studied. Various mixes were prepared using a water/solid ratio (W/S) of 0.25 (by weight). Three percentages of CaCl 2 (0.25, 0.5 and 0.75%) are used; the CaCl 2 used was dissolved in the …

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Calcium Chloride in Concrete - ResearchGate

Calcium chloride in small amounts is used as an accelerating admixture in concrete. In addition to reducing the initial and final setting time …

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A Study on the Mechanical Properties of Concrete by ...

Calcium chloride used for reinforced concrete, it will take the consideration and full understanding of the percentage of calcium chloride to be replaced by the weight of cement because of the steel reinforcement used. The amount of calcium chloride used are commonly 2% and it is mostly in flake form.

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The Influence of Calcium Chloride Salt Solution on the ...

The chemical interaction between calcium chloride (CaCl 2 ) and cementitious binder may alter the transport properties of concrete which are important in predicting the service life of infrastructure elements. This paper presents a series of fluid and gas transport measurements made on cementitious mortars before and after exposure to various solutions with …

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Effect of Calcium Chloride on the Compressive Strength of ...

Concrete is a common material used in the Nigerian building industry. It is obtained by mixing cementitious materials, water, fine and coarse aggregates and sometimes admixtures in required proportions. Admixtures are added to concrete to modify its properties so as to make it more suitable for any situation. In recent times, building collapse in Nigeria has been a source …

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Acceleration and Retardation of Portland Cement …

chloride upon the silicate phase of cement must be examined. In 1959 Lieber and Bleher (6), and in 1960 Kurczyk and Schwiete (7), discovered that the hardening of pure calcium silicates is also accelerated by calcium chloride; the latter investigators found also that the addition of calcium chloride reduces the pH of the cement paste. Vivian (8 ...

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Calcium silicate-based cements and functional impacts of ...

The addition of up to 30% calcium carbonate, calcium sulfate, and calcium chloride resulted in improvement in physical properties of tricalcium silicate cement 57,59,62), as well as enhancing the bioactivity and degradability of the resultant composite material 57). Tricalcium silicate cement is presently used as the main constituent of a ...

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Role of Calcium Chloride in Concrete - The Constructor

Calcium chloride is known to increase drying shrinkage, the magnitude depending on the amount of calcium chloride added, the type of cement, the period of curing, and environmental conditions. 6. Efflorescence. Due to use of calcium chloride in concrete, a whitish deposit is formed on the cured concrete surface in some instances.

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The Role of Calcium Chloride in Concrete | Cross ...

Calcium chloride accelerates cement's rate of hydration. A reduction in setting time helps protect freshly placed concrete. The effect is most noticeable …

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CALCIUM CHLORIDE AS AN ADMIXTURE IN CONCRETE

calcium chloride as an admixture in concrete. tests were conducted on accelerators or admixtures in concrete for attaining rapid set and early strength. the effect of such admixtures on the compressive strength of concrete and mortar were studied by strength tests using admixtures of calcium chloride from two different manufacturers and three ...

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Calcium Chloride (CaCl₂) – Preparation, Properties ...

The chemical formula of calcium chloride can be given as CaCl2. It is an ionic compound that consists of one calcium cation Ca2+ and two chloride anions. The bivalent calcium metal forms an ionic bond with two chlorine atoms. Calcium chloride is an ionic compound, which is made of ions. As we all know, ions either can have positive or negative ...

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Calcium Chloride - Occidental Petroleum

Physical Properties of Calcium Chloride Literature data on the physical properties of calcium chloride, its hydrates and solutions generally refer to pure material. Pure calcium chloride, however, is only available in smaller quantities from chemical reagent supply houses. Commercial grades of calcium chloride, such as those

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Effect of calcium chloride and kaolinite on shear strength ...

Influence of calcium chloride on shear strength of cement grout The influence of calcium chloride was studied by preparing samples with different concentrations of calcium chloride (0, 0.25, 0.5, 1, 2.5, 5 and 10% by

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Properties of Cement- Physical & Chemical - Civil …

Cement, a popular binding material, is a very important civil engineering material. This article concerns the physical and chemical properties of cement, as well as the methods to test cement properties. Physical Properties …

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Concrete Admixtures - Types and Functions - Cement …

Concrete admixtures have various functions and they are as follows: (a) To increase the rate of strength development at early ages – calcium chloride is the most widely used accelerator, (b) To retard the initial setting time while pumping …

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The Effect of Calcium Chloride on Push-Out Bond Strength ...

Introduction This in vitro study investigated the effect of adding 10% calcium chloride (CaCl 2) on push out bond strength of calcium-enriched mixture (CEM) cement and mineral trioxide aggregate (MTA) to root canal dentin. Methods and materials A total of 120 root dentin slices with 2 mm thickness were prepared from sixty single-rooted human teeth.

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Role of Calcium Chloride in Concrete - The Constructor

CBD-165. Calcium Chloride in Concrete. Originally published 1974. V.S. Ramachandran. The addition of small amounts of certain materials to concrete to promote desirable properties is as old as the use of cement itself.

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Calcium Chloride (CaCl2) - Structure, Properties, and Uses

Calcium Chloride is an ionic compound with the chemical formula CaCl2. Therefore, a sample of calcium chloride contains twice as many chloride …

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Calcium aluminate cement properties - Big Chemical ...

Calcium aluminate cement properties Refined calcined alumina is commonly used in combination with high purity limestone [] to produce high purity calcium aluminate cement (CAC). The manufacture, properties, and appHcations of CAC from bauxite limestone, as weU as high purity CAC, has been described (104). High purity CAC sinters readily in gas-fired rotary kiln …

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Calcium chloride | CaCl2H4O2 - PubChem

Calcium chloride | CaCl2H4O2 | CID 24844 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities ...

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CALCIUM CHLORIDE IN CONCRETE - Transportation …

calcium chloride in concrete. calcium chloride has been used for many years to accelerate the early strength development of concrete. its effects on other properties of concrete are not as well known. this paper presents test results on the effects of type of cement, age, temperature, and mix proportions on the strength of concrete containing ...

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Properties of Calcium Chloride – Peters Chemical Company

Because of its highly hygroscopic properties, calcium chloride is used to dry (remove moisture) a wide variety of gaseous and liquid organic products. During oil well drilling, calcium chloride solutions are used in an assortment of applications because of their solid-free, high density characteristics. Desiccant for hydrocarbons, calcium chloride:

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Effect of Calcium Chloride on the Compressive Strength …

2 S. O. Odeyemi et al.: Effect of Calcium Chloride on the Compressive Strength of Concrete Produced from Three Brands of Nigerian Cement buildings that had outlived their life spans, some were still undergoing construction, some had been declared unsafe and

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Calcium Chloride (CaCl2) - Structure, Properties, and Uses

Calcium Chloride is an ionic compound with the chemical formula CaCl2. Therefore, a sample of calcium chloride contains twice as many chloride ions as calcium ions. Learn about its properties and uses.

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The environmental impacts of calcium chloride addition …

the concrete. The chloride ion can locally depassivate the metal and promote active metal dissolution (Bertolini, L. et al, 2004). Chloride reacts with the calcium aluminates (C3A) and calcium aluminoferrite (C4AF) in the concrete to form insoluble calcium chloroaluminates and calcium chloroferrites in which the chloride is bond in non-active form;

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Calcium Chloride - an overview | ScienceDirect Topics

Calcium chloride is one of the most versatile of the basic chemicals. It has been produced commercially for over 100 years. The properties and characteristics of CaCl 2 make it useful in a large number of applications. It has several common applications such as brine for refrigeration plants, ice and dust control on roads, and in concrete.

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Effect of a calcium chloride solution treatment on ...

This paper details a novel method to improve wear resistance of dental glass ionomer cement (GIC) restorations. The purpose of this in vitro study was to evaluate the effect of a calcium chloride (CaCl 2) solution treatment on surface hardness, surface roughness, compressive strength, water sorption and solubility of three conventional glass ionomer cements (GICs).

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Top 10 Best Calcium Chloride Ice Melt Concrete - Our …

We analyzed and compared 33 calcium chloride ice melt concrete sold for nearly 33 hours, and considered the opinions of 652 consumers. Following our last update, our favorite model is the Ice Melt Bucket, Fast Acting Ice Melter – Pet, Plant and Concrete Friendly, Environmentally Safe, Free of Magnesium Chloride, Non-Corrosive Pure Calcium Chloride …

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Calcium Chloride in Portland Cement Concrete

Calcium Chloride in Portland Cement Concrete Still the Most Effective Concrete Accelerator . ... It has long been known that curing concrete during cold weather can result in an inferior product with substandard properties. Curing also takes much longer, adding to job costs and extending the time before the concrete surface can be used. Although

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