Can you use slag under concrete?

Can you use slag under concrete?

Steel slag is not recommended for use in rigid confined applications – such as concrete aggregate, base or fill under structures or floor slabs, or backfill against structures or bridge abutments. Durability: The slags are highly resistant to weathering action such as freezing and thawing.

What is the formula of slag?

The slag can generally be expressed by the formula FeSNa2S(O).

What is the highest grade of concrete?


Which is the best quality cement?

Best Cement Brand in India Rate

Rank Best Cement Brand Rate
1 UltraTech Cement Rs 340 / Bag
2 ACC Cement Rs 328 / Bag
3 Ambuja Cement Rs 327 / Bag
4 J. K. Cement Rs 367 / Bag

Which cement is better 43 grade or 53 grade?

The fineness in cement generates early gain in strength, but along with high heat of hydration. OPC 43 grade cement is generally used for non-structural works like plastering flooring etc. Whereas OPC 53 grade cement is used in the projects which require higher strength like concrete bridges, runways RCC works etc.

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 are the main types of cement?

Different Types Of Cement

  • Ordinary Portland Cement (OPC)
  • Portland Pozzolana Cement (PPC)
  • Rapid Hardening Cement.
  • Extra Rapid Hardening Cement.
  • Low Heat Cement.
  • Sulfates Resisting Cement.
  • Quick Setting Cement.
  • Blast Furnace Slag Cement.

How do I choose a concrete grade?

Grades of concrete are defined by the strength and composition of the concrete, and the minimum strength the concrete should have following 28 days of initial construction. The grade of concrete is understood in measurements of MPa, where M stands for mix and the MPa denotes the overall strength.

Which cement has highest compressive strength?

All Answers (14) Taiheiyou Cement Corporation of Japan has recently developed a new cementitious material that is claimed to deliver record compressive strength of 464 N/mm2 using normal pour-and-form techniques.

What is the main use of portland slag cement?

PSC has been voted as the most suitable cement for concrete pavements, mass concrete applications, high performance or high strength concrete, structures and foundations, pre-cast concrete such as pipe & block, concrete exposed to sea water and marine application.

How many type of cement do we have?


What is type1 cement?

Type I, IA Use Portland Cement in concrete for bridges, walls, culverts, floors, pavements, sidewalks, pipe, railway structures, reinforced concrete buildings, tanks and reservoirs, as well as for masonry units and other precast products.

Why is slag used in concrete?

Slag cement is most widely used in concrete, either as a separate cementitious component or as part of a blended cement. It works synergistically with portland cement to increase strength, reduce permeability, improve resistance to chemical attack and inhibit rebar corrosion.

Can you make cement at home?

Cement, in fact, is one of several ingredients that are combined to make concrete. Cement is a powdery, dry substance that makes concrete when it’s mixed with water, gravel, and sand. Instead of buying a bagged mix, you can try making your own cement by obtaining and burning limestone.

What is slag used in cement?

The use of slag in concrete has several benefits, including reduced energy, reduced greenhouse gas emissions, and reduced use of raw materials. – Ground-granulated blast-furnace slag (GGBFS)—Now known as cement, slag—granulated blast-furnace slag that has been finely ground and that is a hydraulic cement.