The Results Of The Use Of Special Concrete Additives
The Role of Chemical Admixtures in the Formulation of …
The result is a much enhanced early strength development, especially after 6–12 h ... Tagoshi, H.: Use of a Polymer as a High-Flow Concrete Additive and Concrete Material Containing the Additive, EP 0,757,998 (2003) Google Scholar Guicquero, J.P., Maitrasse, P., Mosquet, M.A., Sers, A.: A Water Soluble or Water Dispersible Dispersing …
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(PDF) Admixtures in Concrete -A Review
Citations (1) References (9) Abstract. Admixtures are liquids or powders added in concrete, based on mix design computations, with an objective to improve the …
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The effect of using polyethylene terephthalate as an additive …
The pulverized PET was used in concrete with percentages of 5 %, 10 %, and 15 % by weight of conventional fine aggregate. Four types of concrete specimens including the control were prepared. The flexural and compressive strength of the concrete specimens were tested, after a curing period of 3 days, 7 days, 14 days, and 28 days …
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Properties of concrete modified with mineral additives
The test results showed that the addition of pozzolanic additives to the concrete mix resulted in increased pore volume and the average pore size, thus better freeze-thaw resistance of concrete [21]. The aim of the study presented in this article was to determine the effect of mineral on the alumosilicate bares additives on the properties …
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Strength development of concretes with alternative concrete additives
46 Special feature: Admixtures and additives CPI + The contribution of differing concrete additives to strength development in normal concrete was determined within the scope of an experimental ...
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the results of the use of special concrete additives
WebJul 10, 2023 The presented results demonstrate that the use of PCM improves the conditions of concrete maturation by reducing the average temperature of the mixture in its entire volume. Full article (This article belongs to the Special Issue Concretes and Cement-Based Composites Additives/Admixtures, Hydration Process and Durability Research )
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Use of superabsorbent polymers (SAP) as concrete …
The introduction of Superabsorbent polymers (SAP) as a new component for the production of concrete materials offers a number of new possibilities with respect to water control and, as a result, to the control over the rheological properties of fresh concrete, this in addition to purposeful water absorption and/or water release in either fresh ...
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The Best Concrete Additive for Cold Weather
The best additives you can use when cold weather is present are air-entraining admixtures, accelerators, and superplasticizers. Air entraining admixtures improve the resistance of concrete to damages caused by freezing and thawing. Accelerating admixtures or accelerators speed up the curing process and hardening time …
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Producing sustainable concrete with plastic waste: A review
As a result, the use of plastic waste as a partial replacement (50% to 75%) for the total aggregate significantly boosts the efficiency of thermal and sound lightweight concrete insulation. In addition, the cost of its manufacturing is drastically diminishing in comparison to that of ordinary concrete, and plastic can be installed and utilized ...
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Concrete Admixtures
Chemical Admixtures Are One of the Components in High Performance Concrete. The first step in optimizing concrete is to recognize that concrete is no longer simply cementitious materials, aggregates and water. It is a high performance material with not just four, but seven essentials – consisting of water, cementitious material, sand, gravel ...
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Special Concrete in Construction Archives
NeoConcrete: Applications and Advantages. NeoConcrete is a construction material that creates a continuous coating of 0.4 cm thickness for walls, floors, and exteriors that resembles terrazzo or granite finish. It is produced from a mix of cement, decorative aggregate, and resin. The most common ...
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Natural Admixture As An Alternative for …
The use of chemical admixtures in concrete is a common practice in modern construction. Although chemical admixtures improve the properties of concrete but also create leaching problem and they ...
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Concrete Chemical Admixtures
Admixtures related to moisture control (called water-reducing admixtures) generally consist of additives that allow for concrete to retain its workability given a …
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Concrete Strengthening by Introducing Polymer-Based Additives …
The widespread use of concrete results from several reasons, such as the abundance of ... This paper is devoted to the overview of recent developments and research concerning polymer additives used in concrete-based composites. ... due to their high electric and heat conductivity, steel fibre-reinforced concrete can be applied in special ...
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Influence of various additives on properties of concrete
concrete cost-effectiveness in construction have been successfully solved by the industry chemicalization, in particular, through the usage of various organic and inorganic …
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the results of the use of special concrete additives curves
Introduction to Reinforced Concrete Structural Design. Introduction to Reinforced Concrete Structural Design Eugene Washington, PE Learning Objective The purpose of this course is to give the reader an understanding of how the two basic methods of concrete structural analysis compare by example in theory and results...
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Concrete Admixtures: Applications, Uses and Types
Manufacturers mainly use Concrete Admixture to reduce the cost of concrete construction; transporting, arranging, and hardening purposes; and overcome emergencies during certain operations. The successful use of these admixtures depends on the proper dosing method and the application of the infusion method. Most ready-to-use admixtures are in ...
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ERDC/CERL TR-11-46, The Use of Natural Pozzolan in …
The Use of Natural Pozzolan in Concrete as an Additive or Substitute for Cement ... Approved for public release; distribution is unlimited. ERDC/CERL TR-11-46 December 2011 The Use of Natural Pozzolan in Concrete as an Additive or Substitute for Cement . Ghassan K. Al-Chaar, David A. Yaksic, and Lisa A. Kallemeyn ... Results indicate that …
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Preliminary research on strength of polymer modified concrete …
This research deals with polymer concrete, PC, based on epoxy resin hardened with a modified polyamines. The used aggregates are sand graded from 0 to 4 mm (S0/4) and gravel graded from 4 to 10 mm ...
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Influence of various additives on properties of concrete
Cemplast and D-5 additives are highly effective modifiers of concrete and mortar. They can increase the strength by 20-40% at the age of 28 days at dosages of 1.6-6% with a decrease in water ...
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Review of the Effects of Supplementary Cementitious …
Specialized concrete for novel applications, namely self-curing, self-healing, superhydrophobic, electromagnetic (EM) wave shielding and self-temperature adjusting …
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Concrete additive
Since 2018, Graphenemex® has focused on the development of a multipurpose additive with graphene oxide to improve various properties of concrete and mortar using a single additive. *Results endorsed by tests in a certified laboratory. USES For the manufacturing of any cement-based structure such as mortar and concrete, whether conventional or ...
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20 Steps the Essential Use Of Additives For Concrete
Accelerating, retarding, water-repellent, antibacterial, or even with coloring properties, the additives serve, above all, to optimize different resources both on-site, in the factory, or throughout the useful life of the construction carried out. In this way, they help in their own way to meet the inalienable goal of construction sustainability.
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Different mineral admixtures in concrete: a review
The present work reviews the various mineral admixtures used in concrete which modifies the concrete properties. In this study, cement is partially or completely replaced by different mineral admixtures such as fly ash, silica fume, rice husk ash, Ground Granulated Blast Furnace Slag, palm oil fuel ash and metakaolin. The strength obtained …
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(PDF) Admixtures in Concrete -A Review
Email: [email protected]. Abstract. Admixtures are liquids or powders added in concrete, based on mix design computations, with. an objective to improve the fresh as well as enhance the ...
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New additives could turn concrete into an effective carbon …
While the idea of early-stage concrete carbonation is not new, and there are several existing companies that are currently exploring this approach to facilitate carbon dioxide uptake after concrete is cast into its desired shape, the current discoveries by the MIT team highlight the fact that the precuring capacity of concrete to sequester ...
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Use of waste rubber as concrete additive
Substances. Water. Sodium Hydroxide. Rubber. For resource reutilization, scrap tyres have long been investigated as an additive to concrete to form 'Rubcrete' for various applications and have shown promising results. However, the addition of rubber particles leads to the degradation of physical properties, particularly, the compressive streng ….
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SikaCim® Concrete Additive
USES. SikaCim® Concrete Additive is a high range water re- ducing concrete admixture specially formulated for the precast concrete element industry; to meet the demand of early removal of formwork due to the early strength gain. Enables concrete placing equipment to be used to its full capacity. Effective throughout dosage range.
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Types of Admixtures & Additives for Concrete
There are essentially 5 distinct types of admixtures or functions as they are known in the trades; water-reducing, plasticizers or superplasticizers, air-entraining, retarding and accelerating. Below you will find a selection of …
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Concrete Strengthening by Introducing Polymer …
The widespread use of concrete results from several reasons, such as the abundance of substrate resources, low cost and high compressive strength [ 1 ].
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