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To answer your query, what is retarder in concrete? I would like to say that concrete retarders are used to put off the concrete's initial setting time by up to an hour. They are typically employed in hot weather to prevent the quick hardening caused by high temperatures, providing time for mixing, shipping, and placement. Water reducers are also retarders.
Purpose of retarder in concrete:Concrete retarders are used to put off the concrete's initial setting time by up to an hour. They are typically employed in hot weather to prevent the quick hardening caused by high temperatures, providing time for mixing, shipping, and placement. Water reducers are also retarders.
Types of Retarders in concrete:- Organic Retarders
Lignosulphonates
Hydroxycarboxylic acids and their salts
Phosphonates
Sugars
- Inorganic or Chemical Retarders
Phosphonates
Borates
Salts of Pb, Zn, Cu, As, Sb
A chemical substance known as a retarder slows down a chemical reaction. Retarders are employed, for instance, to delay the chemical reactions that cause polymeric products like wallboard, concrete, and adhesives to harden. Sugar water is an example of a retarder as it slows down the concrete curing.
After understanding the purpose, types, examples, and the retarder meaning in concrete let us focus on the advantages of the retarder.
Advantages of a retarder in concrete:complex grouting or concrete placing.
exposed aggregate finish is a unique surface treatment for architecture.
compensating for the initial set's acceleration due to high temperature.
avoiding the creation of cold joints during subsequent lifts.
I would like to conclude here as I believe this suffices your query about what is retarder in concrete.
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What is Retarder in Concrete?
Pratibha
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2 Year
2022-08-25T22:16:51+00:00 2022-08-25T22:16:52+00:00Comment
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