Products

CPAC coastal concrete

Details
Revolutionizing the concept of concrete for coastal works With the properties of concrete that are specially developed for coastal works, it can resist the penetration of chlorides and sulfates, which are found in seawater, sea vapor, brackish water, groundwater and saline soil. It has been designed to be in accordance with the standard materials and construction requirements for concrete structures (Engineering Institute of Thailand). Both chlorides and sulfates will have adverse effects on the structure, especially in areas that are 0-15 kilometers from the coast. From research, it was found that the distance of concrete structures from the coast affects the damage to the concrete. Within 5 kilometers, concrete will be damaged quickly and severely. And the damage will occur more slowly when the distance from the coast is greater. But the damage is still within 15 kilometers. Therefore, the damage can be divided into 2 levels: severe and moderate.

Chloride will accelerate the rust reaction of the reinforcing steel, causing rust to occur faster. While sulfate will react with concrete, causing the concrete to deteriorate faster and have less strength.

Suitable for the following types of work:
Structures located 0-5 kilometers from the coast (severe damage) or structures that must be in contact with salt water, brackish water or saline soil, such as some areas in the Northeast

Properties

Resist the penetration of chloride and sulfate, with the ability to resist penetration of chloride up to a concentration of 10,000 - 27,000 ppm and resist sulfate up to a concentration of 2,200 ppm
Resists the impact of waves and the abrasion of gravel and sand
Usage instructions and precautions
Do not add water to make the concrete more liquid, as this will cause the concrete properties to be different from those designed.
Concrete should be vibrated properly, according to the standard materials and construction requirements for concrete structures (Engineering Institute of Thailand) to prevent cavities in the concrete and increase the strength and durability of the concrete.
Concrete curing Concrete should be cured immediately after the concrete begins to set, continuously for at least 7 days, which can be done in several ways, such as water retention, concrete curing chemicals, covering with wet sacks and watering to keep it moist at all times, or spraying with clean water to keep it moist at all times, or according to the standard materials and construction requirements for concrete structures (Engineering Institute of Thailand)
Structures and buildings or special constructions that may require other appropriate curing methods in addition to this method