Concrete & Well Cementing
Building constructions that last
In concrete applications, colloidal silica works exceptionally well as a stabilizer, a durability enhancer, an accelerator and a strength developer. Colloidal silica produces extremely stable, bleed-free cement slurries without free water. Additionally, at lower temperatures in deep to ultra-deep well cementing applications, colloidal silica enhances early compressive strength.
The construction industry is always on the lookout for ways to improve concrete performance. Naturally solutions must be both economically and environmentally sound. Colloidal silica is a solution with several distinct advantages, besides being chemically inert.
Colloidal particles interact with the free lime (calcium hydroxide) – created during cement hydration – to create calcium silicate binders. These binders produce a cohesive gel structure that enhances cement-paste density, reinforces the structure between cement grains, and eliminates free water.
When added to self-compacting concrete applications, segregation of aggregates is controlled and bleed is prevented – making the mix more stable and workable.
Well cementing applications also benefit from colloidal silica. Thanks to a mix that improves strength and shortens setting times, well drilling activities usually can resume more quickly – saving time and money. Additionally, the low specific gravity of colloidal silica produces lightweight slurries that can be injected more controllably.
For more information:
We are here to help you to improve the efficiency of your well cementing and concrete applications. Please contact us for advice on which colloidal silica products are best for your applications.
|DID YOU KNOW?
There are eight categories of cement additives: accelerators, retarders, extenders, weight agents, dispersants, fluid loss control agents, lost circulation control agents, and specialty agents.