Simulation of ultra-high-performance concrete mixed
In this research, the w/b was controlled with the ratio of 0.16 for each sample. Besides, the addition of super-plasticizer ensures that the UHPC mix is in a high workability condition as stated in SIA 2052, 2016. A poly-carboxylic ether-based super-plasticizer was also used by Yu et al [28], by weights, per m 3, as presented in Table 3.
Superplasticizers - Sika
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Superplasticizer: Types, Advantages & Disadvantages - Constructionor.Com
Superplasticizers (SPs) are also known as high- range water reducers that are additive used in making high strength concrete. Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow a 30% or more reduction in water content.
Effect of Superplasticizer on Fresh and Hardened Properties of Concrete
This paper has been made an attempt to study the influence of superplasticizer dose of 0.6, 0.8, 1.2, 1.8 and 2.5 percentage on performance of concrete. The experimental tests for fresh and...
Behaviour of Normal Concrete Using Superplasticizer under
The highest and lowest values of compressive strength were obtained with the addition of 0.5% and 1% superplasticizer respectively. It was found that without increasing the W/C ratio, the addition...
- What is a superplasticizer in concrete?
- Superplasticizers allow a 30% or more reduction in water content. It is chemical admixtures that are added to the concrete to improve their flowing ability, they help to reduce the amount of water in the concrete and to improve the strength and durability of concretes. They achieve a reduction in water content without loss of workability.
- What is a superplasticizer used for?
- Superplasticizers (SPs), also known as high range water reducers, are additives used for making high strength concrete or to place self-compacting concrete. Plasticizers are chemical compounds enabling the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more.
- Does superplasticizer affect workability of concrete?
- The influence of a superplasticizer on workability of concrete confirmed that slump of fresh concrete can be optionally controlled in all mix- designs if Superplasticizer is added. Since workability of low water/cement ratio concrete is difficult to control, addition of Superplasticizer can usefully maintain the initial slump of mixed concrete.
- What is the best superplasticizer for prestressed concrete?
- In addition, aggregates should be cleaned before mixing to wash away the fine particles that stick on the surface of the aggregate. The superplasticizer used in this study is Glenium C380. It is a new superplasticizer, which not only suitable for prestressed concrete, but also for other types of concrete.
- What is polycarboxylate superplasticizer (PCE)?
- Polycarboxylate superplasticizer (PCE), the third generation of high-performance superplasticizer, follows the development of ordinary plasticizers and superplasticizers. It significantly reduces water content while enhancing concrete's workability, strength, and durability.
- Does superplasticizer prolong the time of set of concrete?
- In the fresh state, superplasticizer normally reduce tendency to bleeding due to the reduction in water/ cement ratio or water content of concrete. However, if water/ cement ratio is maintained, there is tendency that superplasticizer prolong the time of set of concrete as more water is available to lubricate the mix .
