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The Need To Use Admitures In Concrete And Building - Properties - Nairaland

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The Need To Use Admitures In Concrete And Building by ProjSynergies: 2:28pm On Jul 26, 2022
Living Smart has been in the front burner of lifestyle, from Green Living to Smart Homes all point to Savings of money and energy is some way(Resources).

Piccardi Project Synergies is positioned in the forefront of injection of these new technology driven ideas into the Nigerian market space.

There's no way we'll talk Admitures without the history of Cements and Concrete, right from when engineers have been building, different types of adding some chemical based on each person's experience, has been a part of the building technology itself.

These days concrete is being used for various purposes to make it suitable for different conditions. Ordinary concrete may not give us the required quality performance such as durability, strength, workability and finishing quality of concrete. In such situations, concrete admixtures are used to modify or improve the ordinary concrete properties. i.e. mass concreting, concreting at narrow spaces, at remote places where water is not available easily, where formwork need to be removed early, concreting work near coastal area, etc.

Additives and Admitures have been part of building technology and industry,
With the new initiatives targeting energy conservation and the need for more sustainable infrastructure, your materials are evolving, and they will change how business is done at the construction jobsite in the future.

Case in point: concrete admixtures. The global concrete admixtures construction chemical market is projected to reach at $16.32 billion by 2022.

The primary reasons for this growth include new government initiatives and sustainable infrastructure opportunities in the construction industry, which will require the use of concrete admixtures.

Rapid growth of the construction industry, due to change in lifestyle patterns in emerging countries such as China, India, Brazil, Middle East, and Africa, and due to the rapid economic development and an increase in disposable income, has fueled the growth of the concrete admixtures market. Fast adoption of the latest manufacturing standards globally is expected to increase the penetration level of concrete admixtures.

Admixtures offer high workability, high compressive strength, durability, watertight, wear resistant, and high finish for the complex modern structures, which is expected to drive the growth of concrete admixture market.

A lack of awareness of the long-term benefits of concrete admixtures in contrast to the inexpensive substitutes is expected to hamper the growth of the market.

An increase in government initiatives regarding energy conservation and sustainable infrastructure will open new opportunities during the forecast period

However, note that admixture must not be used for the replacement of poor quality of ingredient or poor workmanship. Concrete Admixtures are used to improve the behaviour of concrete under various conditions and ensure the quality of concrete during mixing/transporting/placing/curing, both as a fresh concrete and hardened concrete.
Admixtures are primarily used for:

To reduce water content in concrete i.e. keep water cement ratio as less as possible.
To increase compressive strength and durability parameter of concrete.
To enhance the workability and give more transportation and placing time.
To impart specific property of concrete or to create favourable condition during placing.
To control the shrinkage cracks.
To achieve specific concrete properties more effectively.
To ensure quality of concrete during mixing, transporting, placing, and curing in adverse weather condition.
Modify the rate or capacity for bleeding.
Improve pumpability
Decrease permeability
Increase bond between existing and new concrete.
Use of admixtures in concrete successfully depends on the use of appropriate methods of concreting and batching. Most admixtures are supplied in ready-to-use liquid form and are added to the concrete at the plant or on the project site.

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