What are waterreducing admixtures Concrete

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What are water-reducing admixtures?

What are water-reducing admixtures? A. Water-reducing admixtures are used to increase the strength and workability of concrete and to reduce cost.

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Water-Reducing Admixture - an overview ScienceDirect Topics

Tony Binns, in Advanced Concrete Technology, 2003. Water-reducing admixtures, plasticizers, high-range water reducers and superplasticizers. Water-reducing admixtures are recommended both for avoiding excessive cement content for a given free water/cement ratio at the required consistence class and to reduce any tendency towards excessive bleeding by minimizing the free water content.

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Materials Selection Guide: Water-Reducing Admixtures ...

06-12-2006  Water-reducing and set-controlling admixtures represent one of the more important groups of chemical admixtures used in concrete. These admixtures reduce the water requirement of a concrete mixture for a given slump or increase the slump for a given water content.

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Use of Water Reducers, Retarders, and Superplasticizer

Water reducers, retarders, and superplasticizers are admixturesfor concrete, which are added in order to reduce the water content in a mixture or to slow the setting rate of the concrete while retaining the flowing properties of a concrete mixture. Admixtures are used to modify

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Admixtures for Concrete - Memphis

WATER-REDUCING ADMIXTURES Water-reducing admixtures are used to reduce the quan-tity of mixing water required to produce concrete of a certain slump, reduce water-cement ratio, reduce cement content, or increase slump. Typical water reducers reduce the water content by approximately 5% to 10%. Adding a water-reducing admixture to concrete ...

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Revealing the Mystery of Admixtures: Water-Reducing and ...

29-05-2010  Water-reducing admixtures improve concrete’s plastic (wet) and hardened properties, while set-controlling admixtures are used in concrete being placed and finished in other than optimum temperatures. Both, when used appropriately, contribute to good concreting practices. Also, both admixtures should meet the requirements of ASTM C 494 (see ...

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What are Admixtures? And its types – Civilmint

Water-reducing admixtures are chemical admixtures design to reduce the water: cement ratio of concrete without adversely affecting the natural philosophical properties. Water reducing admixtures can reduce the amount of mixing water required to reach a given slump.

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Concrete Admixtures - Types and Functions - Cement Concrete

A water reducing admixture can be utilized in three ways and these are: (i) By the addition of the admixture with the reduction in water-cement ratio, a concrete having the same workability and greater compressive strength can be obtained than that without the admixture.

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Materials Selection Guide: Water-Reducing Admixtures ...

05-12-2006  Decreasing the water content reduces the water-cement ratio, thereby increasing the resulting concrete's strength. These admixtures can be broken into three main categories. Conventional water-reducing admixtures—also known as low-range water reducers—represent the first generation of water-reducing admixtures

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Water-Reducing Admixture - an overview ScienceDirect Topics

Tony Binns, in Advanced Concrete Technology, 2003. Water-reducing admixtures, plasticizers, high-range water reducers and superplasticizers. Water-reducing admixtures are recommended both for avoiding excessive cement content for a given free water/cement ratio at the required consistence class and to reduce any tendency towards excessive bleeding by minimizing the free water content.

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Water-reducing Set-retarding Admixtures: Affects, and ...

Water-reducing and set-retarding admixtures are chemicals that slow down the initial reaction between cement and water by reducing the rate of water penetration to the cement and slowing down the growth of the hydration products. As a result, concrete stays workable longer than it would otherwise.

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Water Reducing Admixture for Concrete - Kingusn Chemicals

KINGSUN is one of the leading concrete admixtures manufacturers and suppliers in China. We also have focused on researching and producing good quality concrete admixtures for many years. There are three types of water-reducing admixtures for sale in KINGSUN, they are sodium lignosulfonate, sodium naphthalene sulfonate, and polycarboxylate superplasticizer.

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Water Reducing Admixtures - Sika

Sika® ViscoCrete®-2110. High Range Water Reducing Admixture. Sika® ViscoCrete®-2110 can be used for all levels of water reduction in various types of concrete ranging from dry cast applications, conventional concrete to SCC (Self Consolidating Concrete). Sika® ViscoCrete®-2110 will deliver water reduction up to 45 %.

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Admixtures for Concrete – What is a Water Reducer? - YouTube

05-12-2017  This video introduces admixtures and gives an overview of water reducing admixtures for concrete. tylerley

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Revealing the Mystery of Admixtures: Water-Reducing and ...

29-05-2010  Water-reducing admixtures improve concrete’s plastic (wet) and hardened properties, while set-controlling admixtures are used in concrete being placed and finished in other than optimum temperatures. Both, when used appropriately, contribute to good concreting practices. Also, both admixtures should meet the requirements of ASTM C 494 (see ...

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Water reducer - Wikipedia

Water reducers are special chemical products added to a concrete mixture before it is poured. They are from the same family of products as retarders.The first class of water reducers was the lignosulfonates which has been used since the 1930s. These inexpensive products were derived from wood and paper industry, but are now advantageously replaced by other synthetic sulfonate and ...

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Disadvantages of High Range Water Reducing Admixtures in ...

Though strength of concrete in hardened state is higher when high range water reducing admixtures used than normal concrete because of lower water/cement ratio, there have some limitation also. Here we are listing some disadvantages according to National Ready Mixed Concrete Association:

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MasterGlenium 7511 Master Builders Solutions

MasterGlenium 7511 admixture is a ready-to-use high-range water reducing admixture based on the next generation of polycarboxylate technology. MasterGlenium 7511 admixture is very effective in producing concrete mixtures with different levels of workability including applications that require self-consolidating concrete (SCC) Recommended uses:

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Water Reducing Concrete Admixtures TriStar Concrete

Water Reducing Concrete Admixtures Just as the name implies, these are chemical admixtures that are added to the concrete in order to reduce the amount of water. Why Use Water Reducing Concrete Admixtures? These chemicals decrease the necessary amount of water in the concrete while still maintaining the workability/slump of the concrete.

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Water Reducing Admixtures - Sika

Sika® ViscoCrete®-2110. High Range Water Reducing Admixture. Sika® ViscoCrete®-2110 can be used for all levels of water reduction in various types of concrete ranging from dry cast applications, conventional concrete to SCC (Self Consolidating Concrete). Sika® ViscoCrete®-2110 will deliver water reduction up to 45 %.

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Types Of Water Reducing Admixtures Regular Plasticizers ...

20-03-2012  Mainly water reducing admixtures are divided into two categories depending upon the amount of dose being use in concrete and in result the decrease in the required weight of water. Low range plasticizers or regular plasticizers High range or super-plasticizers Low Range Plasticizers Low range plasticizers also named as regular plasticizers. These are also called as regular water reducer

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Revealing the Mystery of Admixtures: Water-Reducing and ...

29-05-2010  Water-reducing admixtures improve concrete’s plastic (wet) and hardened properties, while set-controlling admixtures are used in concrete being placed and finished in other than optimum temperatures. Both, when used appropriately, contribute to good concreting practices. Also, both admixtures should meet the requirements of ASTM C 494 (see ...

Get price

What is a Water Reducer? (with pictures)

08-02-2021  A water reducer used as an admixture in concrete functions as a surface active agent, making it more difficult for the cement particles in the concrete mix to stick together. Water reducers are usually divided into three groups. Low-range or normal water reducers can reduce the amount of water needed for a certain concrete mix by 5%.

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What Is Admixture 26 Types of Admixtures Advantages ...

Water-reducing Admixture, the name itself defines that they are used to minimize the demand for water in a concrete mix.. Workability is the important property of concrete, which is improved by adding water, but if the water is added more than necessary, the strength and durability properties of concrete

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(PDF) New Generation Water-Reducing Admixture for Concrete

Ten concrete mixes were produced for various amounts of water-reducing admixture (AD) dosages ranging from 0 - 0.7% (by mass of cement) with W/C of 0.28, 0.34, and 0.38. Workability of fresh ...

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

Concrete admixtures :Ordinary water reducing agent Common water-reducing agent is a wood quality sulfonate of chemicals. When added to concrete, it can produce the desired slump in a case where the water-cement ratio lower than usual design. It usually reduces the required water content of the concrete mixture by about 5% to 10%.

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Disadvantages of High Range Water Reducing Admixtures in ...

Though strength of concrete in hardened state is higher when high range water reducing admixtures used than normal concrete because of lower water/cement ratio, there have some limitation also. Here we are listing some disadvantages according to National Ready Mixed Concrete Association:

Get price

MasterGlenium 7511 Master Builders Solutions

MasterGlenium 7511 admixture is a ready-to-use high-range water reducing admixture based on the next generation of polycarboxylate technology. MasterGlenium 7511 admixture is very effective in producing concrete mixtures with different levels of workability including applications that require self-consolidating concrete (SCC) Recommended uses:

Get price
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