Standard Specification for Chemical Admixtures for Concrete
Construction documents often specify a cement type based on the required performance of the concrete or the placement conditions. Certain cement manufacturing plants only produce certain types of portland cement. What are the differences in these cement types and how are they tested, produced, and ...
1.1 This specification covers materials for use as chemical admixtures to be added to hydraulic-cement concrete mixtures in the field for the purpose or purposes indicated for the eight types as follows:
A material other than water, aggregates, or cement that is used as an ingredient of concrete or mortar to control setting and early hardening, workability, or to provide additional cementing properties.
Admixtures: Admixtures are the special ingredients added during concrete mixing to enhance the properties and performance of fresh concrete. Various types of admixtures are available in the market which is used in construction work.
2 CE Marking for admixtures Since the admixtures for concrete can have extremely different performances and usage, the norm has different classification categories, different tests and minimum performance levels for every single admixture type.
Types Of Concrete Admixtures, Types Of Concrete ... - …
Types of admixtures for concrete and concrete mix design. Information on how to properly use additive in concrete mixes to control shrinkage, accelerate curing, slow curing, reduce water ratios, and more.
Mineral And Chemical Admixtures | Types | Engineering …
Concrete admixtures are used to enhance the properties of concrete for applications in concrete works with special requirements. Concrete admixtures are used to modify the properties of concrete to achieve desired workability in case of low water cement ratio, and to enhance setting time of concrete for long distance
106 Design and Control of Concrete Mixtures EB001 Table 6-1. Concrete Admixtures by Classification Type of admixture Desired effect Material Accelerators Accelerate setting and early-strength Calcium chloride (ASTM D 98 and AASHTO M 144)