Antimicrobial Admixtures
By Sam Lines Concrete is one of the most economic and widely used building materials in […]
A Closer Look: Viscosity-Modifying Admixtures
Editor’s Note: This is the final article in a year-long series explaining common raw materials used […]
A Closer Look: Water-Reducing Admixtures
Editor’s Note: This is the fifth article in a year-long series explaining common raw materials used […]
A Closer Look: Air Entrainment
By Alex Morales, M.Ed. Editor’s Note: This is the third article in a year-long series explaining […]
Water-Reducing and Set-Controlling Admixtures
By Claude Goguen, P.E., LEED AP According to the American Concrete Institute (ACI), an admixture is […]
Muddy Waters
As enforcement of regulations governing discharge from precast concrete facilities becomes more stringent, precasters need to […]
Meet a Precaster-Precast Specialties Corp.
This month we are pleased to feature Precast Specialties Corp. as part of our Meet a Precaster blog […]
Revealing the Mystery of Admixtures: Water-Reducing and Set-Controlling
An admixture is defined as a material other than water, aggregates, hydraulic cementitious material or fiber reinforcement that is used as an ingredient of a cementitious mixture to modify its freshly mixed, setting or hardened properties and that is added to the batch before or during mixing.
Revealing the Mystery of Admixtures
Achemical admixture is usually defined as a nonpozzolanic (does not require calcium hydroxide to react) admixture in the form of a liquid, suspension or water-soluble solid. An admixture is a material other than water, aggregates, hydraulic cementitious material or fiber reinforcement that is used as an ingredient of a cementitious mixture to modify its freshly mixed, setting or hardened properties and that is added to the batch before or during mixing.
Speciality Admixtures
We will look at specialty admixtures such as corrosion inhibiting, shrinkage reducing and alkali-silica reaction reducing admixtures. There are other admixtures on the market, and new ones are being developed every day. However, for the scope of this article we will focus on those most commonly used.
