What Role Do Early Strength Agents Play?

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The secretary general of the Organization of Petroleum Exporting Countries (OPEC) said recently that US economic sanctions against Venezuela have affected global energy supplies. 

He told Venezuelan media that the ECONOMIC sanctions imposed by the United States on Venezuela and other countries have seriously affected the ability to produce and export oil worldwide and violated the right of people in other countries to use energy.

Venezuela has one of the largest proven crude oil reserves in the world, but U.S. sanctions have made it impossible for Venezuela’s oil industry to consistently export reliable energy to the world, he said. Despite this, he highly appreciated the efforts of the Venezuelan oil industry to maintain early strength agent are expected to increase in the future.

What is Early Strength Agent?

Early strength agent is an admixture which accelerates the development of concrete early strength and has no significant effect on later strength.

Under the premise of ensuring the quality of concrete, early strength agent can greatly shorten its final setting time, make it as early as possible, and then accelerate the turnover of template, save template dosage, save energy and save cement, reduce production costs, and improve the output of concrete products. 

The cement in the concrete used in construction takes a long time to set and harden before it reaches strength. But in some large engineering concrete precast components or in the cold season construction, often need in a short time to obtain higher strength. Therefore, in the process of concrete mixing, it is common to add early strength agent to achieve the purpose of hardening in a short time. 

Early strength agent can greatly improve the strength of cement slurry, mortar and concrete.  Adding early strength agent into concrete mixture not only ensures the effect of reducing water, strengthening and compacting of concrete, but also gives full play to the advantage of early strength agent. Adding early strength agent into concrete can ensure the quality of concrete and improve the progress of the project, greatly simplify and reduce the requirements for curing conditions.

Role of Early Strength Agents:

1. Make concrete in a short time to achieve higher strength, to meet the requirements of bearing external forces. 

2. When the temperature is low, the hardening strength of mortar is slower, especially in some frozen soil, the lower the strength of mortar is more harmful to mortar, if mortar is damaged by freezing will cause permanent damage to mortar, so early strength agent must be added at lower temperature. 

Difference between Early Strength Agents and Early Strength Water Reducing Agents: 

Early strength agents added to concrete can harden cement in a short time, especially in low-temperature environments, the role of this product is more obvious. The role of early strength water reducing agent is to reduce water in concrete.

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