Why Air-Entrained Concrete Is The Best Choice In Winter Resistant Flatwork

Why Air-Entrained Concrete Is The Best Choice In Winter Resistant Flatwork

Winter is coming, and air-entrained concrete may be the best choice for winter-resistant flatwork. Air entrainment in concrete is a process where air bubbles are added to the mix before it hardens. This air creates a thermal insulator that prevents damage from frost heave or freeze/thaw cycling.

This blog post will discuss why air-entrained concrete is the best choice in winter.

Protection Against Frost Heave or Freeze/Thaw Cycles

Air-entrained concrete is the most durable and airy of all flatwork materials, which means that it will stay solid even through the harshest winters. Air-entrained concrete has air bubbles throughout, which gives it an airy texture that can withstand freezing temperatures without cracking or breaking. It also resists frost heave more than traditional concrete because air entrainment creates a loose structure with many tiny air pockets to distribute any weight evenly on top of the slab. This helps prevent cracks from forming during freeze/thaw cycles by distributing pressure instead of concentrating it at one point on each face of the slab.

Protection Against Chemical Attacks

Water in air-entrained concrete has a lower freezing point than water in traditional concrete, which means air-entrained slabs will always be more robust and less susceptible to cracking. This makes air-entrained concrete a better choice for exterior applications where a chemical attack can cause damage over time.

Protection Against Bleeding and Segregation

Air entrainment also minimizes bleeding and segregation by helping to prevent air bubbles from separating concrete into layers. By ensuring that all air is evenly distributed throughout the mix, air-entrained concrete produces a more dense material with fewer air pockets. This ensures even curing and reduces surface imperfections like honeycombing or blistering.

Protection Against Shrinkage and Crack Formation

Concrete expands and contracts with the air and water temperatures outside. Air-entrained concrete can help to reduce cracking caused by these changes in temperature because it is less susceptible to drying shrinkage, which causes cracks within the material.

When air entrainment levels are high enough, air bubbles act as tiny insulators that slow down heat transfer. This air insulation can help protect the surface of air-entrained concrete from evaporation during freezing temperatures, reducing cracking and heaving.

Enhanced Workability

Air-entrained concrete also has enhanced workability. This means air-entrainment can help achieve better mixing of air and water into the concrete, reducing segregation (the formation of layers within the wet mixture). A reduction in segregation levels increases plasticity (bonding) between aggregates and paste, which helps with placement onsite.

Sweeney’s Pavement Maintenance in Liberal is confident that we have what you are looking for at affordable prices when it comes to concrete services, including winter-resistant air-entrained concrete. If this sounds good, but you would like more information about how much these materials cost or how long projects take before signing on the dotted line, don’t hesitate to get a free estimate from us today.