Cement reducing additive

Cement reducing additive

Feb 11, 2020 CHRYSO Reductis 50 is a CHRYSO patented solution. Durable Chromium VI content reduction. CHRYSO Reductis 50 reduces significantly the Hexavalent Chromium content in cement even at low dosages. It allows to maintain durably the Chromium VI content below 2 ppm to be in line with the 2003/53/CE European standards

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  • Evaluation of New Concrete Shrinkage Reducing Evaluation of New Concrete Shrinkage Reducing

    representatives of Premier Magnesia, LLC to consider evaluating a new type of concrete shrinkage reducing additive. The product was characterized as being more effective and less costly than currently available technologies. Their primary interest was in getting the

  • Cement and Cement Additives - Structural Guide Cement and Cement Additives - Structural Guide

    Pozzolans are added to the concrete as an additive or as a substitution to the cement. Pozzolans, when used as a replacement, are generally substituted for 10 -50 % of cement. Pozzolans reduce the expansion causes by alkali-aggregate-reaction or alkali-silica reactivity in concrete

  • FR2917401A1 - Chromium hexavalent reducing additive FR2917401A1 - Chromium hexavalent reducing additive

    The additive for the reduction of hexavalent chromium in products such as cement, slag or plaster comprises a stabilized aqueous solution of a chromium reducing agent comprising: - water - a chromium reducing agent, such as ferrous sulphate heptahydrate, - an acid, - an oxygen reducing agent dissolved in excess water, the solution having a pH of 4 to 6

  • Liquid water loss reducing additives for cement slurries Liquid water loss reducing additives for cement slurries

    Liquid water loss reducing additives for use in cement slurries are provided comprised of aqueous solutions of low molecular weight carboxymethylhydroxyethylcellulose

  • Admixtures for Concrete - Memphis Admixtures for Concrete - Memphis

    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 without reducing

  • When You Need Improved Performance, Concrete Additives When You Need Improved Performance, Concrete Additives

    Jun 11, 2021 Water-reducing Admixtures. Concrete additives for strength are chemicals that allow the reduction of water in concrete mix. The required water content in a concrete mix can be reduced by 5-10% by adding water-reducing admixtures. The concrete mix

  • Water Reducing Admixtures - Sika Water Reducing Admixtures - Sika

    Mid Range Water Reducing Applications: At a lower dosage, Sikament -686 can be used as a cost effective mid range water reducing admixture or simply as a water reducing admixture for production of conventional slump concrete. When used as a mid range water reducing admixture, water reduction up to 15 % can be obtained

  • 15 Types of Admixtures Used in Concrete - The Constructor 15 Types of Admixtures Used in Concrete - The Constructor

    1. Water Reducing Admixtures Water reducing admixtures, the name itself defining that they are used to minimize the water demand in a concrete mix. Workability is the important property of concrete which is improved with the addition of water but if water is added more than required the strength and durability properties of concrete gets affected

  • Cementitious Materials - GrapheneUP Cementitious Materials - GrapheneUP

    Cementitious Materials. Few-Layer graphene GUP can dramatically reduce the carbon footprint of cement-based products. Poor resistance to cracking, low tensile strength and strain capacities are considered the major limitations of cementitious materials. Recent developments in the construction industry, seeking out a way to advance

  • Water-Reducing Admixture - an overview | ScienceDirect Water-Reducing Admixture - an overview | ScienceDirect

    The different ways to use high-range water-reducing admixtures, shown in Figure 16.1, result in either a reduced yield stress at constant solid content or water content or in an increase of the solid content (or decrease of the water-to-cement [w/c] ratio) at constant yield stress (Ramachandran et al., 1998).A variety of applications can be achieved by decreasing the w/c and at the same time

  • Effects of Shrinkage Reducing Agent and Expansive Additive Effects of Shrinkage Reducing Agent and Expansive Additive

    Oct 12, 2017 This research is to study the effect of mortar mixed with shrinkage reducing agent (polyoxyalkylene alkyl ether type), expansive additive (CaO type), and fly ash (hereinafter “SRA,” “EX,” and “FA,” resp.). Moreover, steam curing was studied to improve the properties of mortar. The plastic shrinkage test was conducted by using the strain gauge embedded at 0.5 cm from the

  • A review on the Choice of Nano-Silica as Soil Stabilizer A review on the Choice of Nano-Silica as Soil Stabilizer

    Oct 12, 2021 Literature studies indicate that nano-silica as a sole-additive improved the soil strength and it acted as a strength enhancer for cement, lime and fiber treated soils. Also, nano-silica helps in reducing hydraulic conductivity and compression index of the soil

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