How to Increase the Lifespan of Concrete Surfaces

Concrete surfaces are subjected to heavy wear and tear. People walk on them, water seeps beneath and 2-ton cars plow over it. Luckily, there are ways to prevent damage and increase the life span of concrete surfaces. The first step is to seal them. Sealing the concrete will keep chemicals and water out.

C-S-H gel fills pores on concrete's surface

C-S-H gel can increase the lifespan of concrete by filling the pores on its surface. It works by reacting with the cement's calcium (Ca(OH)2) to form additional C-S-H gel. In a study by Land and Stephan, the early strength agent of cement was examined, and their findings revealed that the nano size of C-S-H had a more positive influence on strength development than that of nano SiO2.

The higher C-S-H gel formation, the more compact the cementitious matrix. It can also fill the pores created by OPC and mPOFA. Using both POFA and OPC is necessary to achieve the right balance of silicon and calcium ions. However, a high proportion of one or the other will not increase C-S-H gel production.

Proper curing

Proper curing of concrete surfaces increases the durability and lifespan of concrete structures. Proper curing promotes optimal strength gain, hardness and freeze-thaw durability, and makes concrete surfaces more resistant to abrasion. Conventional curing methods involve application of water and membrane-forming liquids. These methods fall into two main stages: initial curing and final curing.

Curing is the process of ensuring the proper moisture, temperature, and time is provided to a concrete surface. If a concrete surface does not receive proper curing, it will not achieve its designed strength and will eventually lose its durability. Proper curing is an important part of the process, and must be done with care.

Proper curing not only helps prevent the evaporation of water from a concrete surface, but it also helps control the internal temperature fluctuations. Proper curing protects concrete from surface damage, temperature fluctuations, and weather damage. Research has shown that concrete can lose as much as 50 percent of its strength if it is exposed to hot weather, so proper curing is crucial to increase the lifespan of concrete surfaces.

Air-entrainment

One way to extend the lifespan of concrete surfaces is to use air-entrained concrete. This can increase the plasticity and cohesion of concrete and reduce costs. Air-entrained concrete is also more durable and resists the effects of harsh weather. This method is a good option for large construction sites and has a variety of benefits.

One of the most important factors that can damage concrete is freezing and thawing. As concrete freezes and thaws, it expands and contracts, causing the concrete to become porous and weak. The repeated cycle of expanding and contracting can result in microcracks. These cracks can lead to permanent damage to the concrete surface. However, if the concrete is designed to include air-entrained particles, its lifespan can be extended dramatically.

Water protection

In the case of concrete, water protection is important in order to preserve its strength and durability. Frequent wetting and drying of concrete can lead to deterioration, crazing, and scaling. Water also reduces the strength of concrete and can cause ice formation. Using water-repellent products such as Aquapel is a good way to prevent damage from water.

Water contains a high level of salt. This salt does not evaporate and builds up on the inside of the reinforcement. It can destroy the high alkalinity of the interface between the concrete and the rebar, and can lead to steel corrosion. This process can be accelerated if the temperature increases by 100°C.

Proper installation

Investing in proper professional concrete installation will increase the lifespan of your surface, and it can also help reduce cracks. A proper foundation is vital to the lifespan of any concrete surface, and the proper proportions and joints will help reduce cracking and ensure that the surface lasts for a long time.