What is ASTM C989?
ASTM C989 – 10 Standard Specification for Slag Cement for Use in Concrete and Mortars.
What is the ASTM designation for Portland cement?
ASTM C150 – 04
ASTM C150 – 04 Standard Specification for Portland Cement.
What is blast furnace cement?
Blast furnace slag cement is the mixture of ordinary Portland cement and fine granulated blast furnace slag obtained as a by product in the manufacture of steel with percent under 70% to that of cement. Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious properties.
Is code for Portland slag cement?
Portland slag Cement (IS: 455)
What is the difference between Type 1 and Type 2 portland cement?
Portland Cement is a type of cement, not a brand name. Many cement manufacturers make Portland Cement. Type 1 is a general use cement. Type 2 – Is used for structures in water or soil containing moderate amounts of sulfate, or when heat build-up is a concern.
What is Type I II portland cement?
Portland Type I/II cement is typically considered a general-purpose cement and is most often used for general construction purposes, such as precast concrete products, reinforced buildings, floors, sewers, bridges, and pavements.
What is the difference between Portland cement and slag cement?
When used as part of a portland cement concrete, slag reacts with both the water (latent hydraulic reaction) and the hydrated cement paste (pozzolanic reaction), resulting in a more refined microstructure than that of a plain portland cement.
What is ASTM C90 spec?
ASTM C90 contains minimum requirements that assure properties necessary for quality performance, including specified constituent materials, minimum face shell and web thicknesses, minimum compressive strength, permissible variations in dimensions, and finish and appearance criteria.
What are the uses of blast furnace cement?
Uses of Blast-Furnace Slag Cement 1 Used in ready mix concrete plants. 2 Used for structures meant for water retaining such as retaining wall, rivers, ports, tunnels for improvement in impermeability. 3 Used in mass concreting works such as dams, foundations which require low heat of hydration.
What are the disadvantages of blast furnace slag cement?
Disadvantages of Blast-Furnace Slag Cement. Initial Strength is low, due to this it cannot be used in RCC works. As the initial setting time is high, this cement is not used for emergency or repair works.
Are there any testing requirements for coal fly ash and GGBF slag?
Procuring agencies should not, however, subject cement and concrete containing coal fly ash or GGBF slag to any unreasonable testing requirements. In accordance with standard industry practice, coal fly ash and GGBF slag suppliers should be required to provide to users a statement of the key characteristics of the product supplied.
What should procuring agencies expect from blended cement suppliers?
Procuring agencies should expect suppliers of blended cement, coal fly ash or GGBF slag, and concrete to demonstrate (through reasonable testing programs or previous experience) the performance and reliability of their product and the adequacy of their quality control programs.