Kehao Chemicals
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Performance Priorities

Target performance for this application

Explore the functional requirements that guide material selection, product matching, and application testing.

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Workability

Ensures that concrete can be mixed, transported, placed, compacted, and finished efficiently without excessive water addition or loss of uniformity.

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Cohesion and Segregation Resistance

Keeps cement paste, aggregates, water, and fibers uniformly distributed, reducing segregation and improving consistency during transportation, pumping, and placement.

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Bleeding Control

Reduces the upward movement of water after placement, helping prevent laitance, weak surface layers, and poor bonding around aggregates and reinforcement.

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Slump Retention

Maintains suitable concrete fluidity during transportation and placement, especially under high-temperature conditions or extended delivery times.

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Pumpability

Provides stable and continuous flow through pumping equipment while reducing pipeline pressure, blockage, segregation, and interruption during placement.

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Crack Resistance

Limits plastic shrinkage and drying shrinkage cracks by controlling moisture loss and distributing internal stress throughout the concrete.

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Fiber Dispersion

Promotes uniform distribution of reinforcing fibers throughout the concrete, preventing fiber clumping and ensuring consistent crack-control performance.

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Early Strength Development

Accelerates early strength development to support faster formwork removal, shorter construction cycles, and improved performance under low-temperature conditions.

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Durability

Improves resistance to moisture penetration, abrasion, freeze–thaw cycles, temperature changes, and long-term environmental exposure.

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Setting Time Control

Provides predictable setting behavior under different temperatures and construction conditions, allowing sufficient time for placement, compaction, and finishing.

Problem Solving

Common application challenges

Open each topic to understand common issues and the considerations behind a more stable application result.

Segregation

Coarse aggregates separate from the cement paste during mixing, transportation, pumping, or placement, resulting in uneven composition, reduced strength, and inconsistent concrete quality.

Excessive Bleeding

Water rises to the concrete surface after placement, causing laitance, weak surface layers, poor bonding with reinforcement, and reduced durability.

Rapid Slump Loss

Concrete loses fluidity too quickly during transportation or placement, making pumping, spreading, compacting, and finishing more difficult.

Poor Workability

The concrete mixture is difficult to mix, pump, place, compact, or finish, increasing labor requirements and the risk of incomplete filling.

Poor Pumpability

Concrete does not flow smoothly through pumping equipment, resulting in high pumping pressure, pipeline blockage, interrupted placement, and reduced construction efficiency.

Plastic Shrinkage Cracking

Fine cracks appear on the concrete surface shortly after placement when moisture evaporates faster than it can be replaced by bleeding water, especially under hot, dry, or windy conditions.

Drying Shrinkage Cracking

Cracks develop as hardened concrete loses moisture and contracts, affecting appearance, water resistance, structural integrity, and long-term durability.

Low Early Strength

Concrete develops strength too slowly after placement, delaying formwork removal, finishing operations, subsequent construction, and project progress.

Honeycombing and Voids

Visible cavities, exposed aggregates, or unfilled areas appear after formwork removal because of poor workability, inadequate compaction, or mixture segregation.

Inconsistent Setting Time

Concrete sets too quickly or too slowly under changing temperatures and site conditions, disrupting placement, finishing, formwork removal, and construction scheduling.

Application-Focused Support

Need help matching the right product?

Use the recommended Product pages as your starting point for key performance and technical information, then evaluate the best fit for your formulation and application goals.

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