Concrete Curing Blankets: Benefits and Application Methods

Concrete curing mats are an essential product in the concrete curing process; they help extend the structure’s lifespan, minimize the risk of damage during hydration, and prevent the formation of cracks that could compromise the concrete’s load-bearing capacity. The following article discusses the benefits in detail, as well as the most effective application methods for using these mats.

What are concrete curing mats?

According to TCCS 40:2022/TCĐBVN (Construction and Acceptance of Cement Concrete Pavements in Transport Infrastructure Projects), there are two methods for curing concrete.

The method using membrane-forming agents. Curing compounds used for cement concrete pavements are typically liquid-based; when misted onto the pavement surface, they form a clear film that must meet the specifications listed in the table below.

Technical requirements for cement concrete pavement curing compounds

Parameter Requirement

Effective water retention rate (minimum) 75%

Film formation time (maximum) 4 hours

Water solubility after film formation Must specify whether soluble or insoluble

Notes: 1. Effective water retention test conditions: temperature 38°C ± 2% and relative humidity 32% ± 3%. 2. Use insoluble types for exposed surfaces; use soluble types for surfaces that will receive subsequent concrete pours.

Method using plastic sheeting/concrete curing mats

+ Specified thickness: 0.05 mm

+ Water retention rate: minimum 75%.

+ In cases of intense sunlight, water must be applied twice daily (morning and noon).

Concrete curing mats/moisture-retention membranes must not react harmfully with the concrete, must limit water loss to 0.55 kg/m² over 72 hours, must have a daylight reflectance of at least 60%, and must not dry out within 4 hours.

Thus, the use of concrete curing mats is an essential process for maintaining appropriate moisture and temperature levels in the concrete after pouring. This practice not only ensures optimal concrete development but also enhances load-bearing capacity and long-term durability.

Concrete curing mats consist of a non-woven fabric layer and an LDPE film layer, with each layer serving a specific function and offering distinct properties.

The non-woven fabric layer is composed of fibers… The cotton fibers offer excellent water absorption, reducing physical impact on the concrete surface. The fabric also helps maintain the ideal temperature for the hydration process.

The LDPE layer (or plastic film) prevents moisture loss. Additionally, the LDPE film contains additives that increase friction, ensuring the concrete curing mat adheres firmly to the concrete surface.

Concrete Curing Mat Price List

Name

Roll Weight m²/Roll Selling Price

Concrete Curing Mat H180-25 4.5 kg 25 250,000

Moisture-Retaining Curing Mat H180-50 9 kg 50 500,000

Concrete Curing Mat H220-25 5.5 kg 25 275,000

Concrete Protection & Hardening Mat H220-50 11 kg 50 545,000

Concrete Moisture-Retaining Fabric H260–25 6.5 kg 25 290,000

Moisture-Retaining & Anti-Leakage Fabric H260–50 13 kg 50 580,000

Why are concrete curing mats important?

Concrete curing mats offer several notable benefits:

Enhanced Durability: One of the primary reasons for concrete curing is to increase the durability of freshly poured concrete. When concrete is kept properly moist, the internal chemical reactions proceed optimally, resulting in a stronger concrete structure.

Reduced Cracking and Damage: A lack of moisture during the initial stage leads to surface cracking and concrete damage. …concrete. By ensuring the concrete remains moist, the likelihood of cracking is significantly reduced.

Optimizing performance: A structure with high-quality concrete performs better and has a longer lifespan, thereby saving on future maintenance and repair costs.

Concrete curing methods

There are various methods for curing concrete. Below are some common approaches:

Water spraying: This is a simple and effective method, often used for small projects or confined areas. Water is sprayed onto the concrete surface several times a day to maintain moisture.

Using moisture-retention membranes: Membranes can be placed over the concrete surface to prevent water evaporation. This method is particularly effective in hot, dry weather conditions.

Covering with wet fabric: Wet fabric can be laid over the concrete surface and kept moist through frequent wetting. This is a traditional technique that remains highly effective for protecting the concrete.

Curing freshly poured concrete: Effective implementation

Curing freshly poured concrete is not only a crucial step but also requires special attention from the construction team. To achieve the best results, specific steps and procedures must be followed.

Required curing duration

The curing time depends on the type of concrete and weather conditions. However, the curing period should generally last at least 7 days for standard concrete and may be longer for specialized concrete.

Controlling moisture and temperature

Controlling moisture and temperature is vital for effective concrete curing. A moist environment supports the…