What are the objectives of concrete mix design?
The main aim of the concrete mix design is to find out the desired proportion of each ingredients which are cement, coarse aggregate, fine aggregate, water etc. to obtain the required properties of resulting mix.
What is class B concrete used for?
at 28 Days psi Class A concrete shall be used for concrete structures, either reinforced or non-reinforced, and for concrete pavements. Class B concrete may be used for curbs, gutters and sidewalks. Class C concrete may be used for thrust blocks, encasements, fill or Page 2 SECTION 725 725-2 over-excavation, etc.
What is the purpose of aggregate in concrete?
Aggregates make up some 60 -80% of the concrete mix. They provide compressive strength and bulk to concrete. Aggregates in any particular mix of concrete are selected for their durability, strength, workability and ability to receive finishes.
What is the correct mix for concrete?
In terms of the ratio for concrete, it depends on what strength you are trying to achieve, but as a general guide a standard concrete mix would be 1 part cement to 2 parts sand to 4 parts aggregates. For foundations, a mix of 1 part cement to 3 parts sand to 6 parts aggregates can be used.
What is the minimum grade of RCC?
M20
What is grade of UltraTech Cement?
Ultratech PPC Cement, Packing Size: 50 Kg, Grade: 53 Grade
| Packaging Type | Sack Bag |
|---|---|
| Grade | 53 grade |
| Type | OPC (Ordinary Portland Cement), RHC (Rapid Hardening Cement), QSC (Quick Settling Cement) |
| Packing Size | 50 Kg |
| Packaging Size | 50 kg |
Which is better Cement Ambuja or UltraTech?
UltraTech Cement Ltd. has been able to withstand the recent sell-off in cement counters better than peers ACC Ltd. and Ambuja Cements Ltd., despite higher valuations. While shares of ACC and Ambuja Cements slipped 13 percent and 16 percent, respectively, in May, UltraTech was able to restrict the fall to 6 percent.
Which cement is best Ambuja or UltraTech?
Ambuja Cements and UltraTech Cement both have 16 total submitted reviews for “Work culture”. UltraTech Cement had 2 more reviews than Ambuja Cements that mentioned “Slow growth” as a Con. UltraTech Cement had 13 more reviews than Ambuja Cements that mentioned “Work life balance” as a Con.
Which cement brand is best for roof?
- Ambuja Plus Roof Special Cement.
- Shree Roofon Concrete Master Cement.
- RAMCO Supercrete.
- ACC Concrete+ Xtra Strong.
- Wonder Cement PPC.
- Binani Pozzolana Portland Cement (PPC)
- RAASI Concrete from India Cements.
- MyCem Concrete Max.
Is Duraguard cement good?
Benefits. Ordinary cement particles allow seepage of water and chloride, making a structure weak from inside. With the unique Void Reduction Technology, Duraguard increases the strength and density of concrete and stops the attack of harmful elements.
Which is better OPC or PPC?
PPC produces highly durable concrete as it has low water permeability compared to OPC. PPC has low initial setting strength compared to OPC but hardens over a period of time with proper curing. And PPC is cheaper also compared to OPC.
Who is the best cement in India?
10 Best Cement Companies In India 2021
- Ultratech Cement.
- Ambuja cement.
- ACC Cement.
- Shree Cement.
- Dalmia Cement.
- Birla Cement.
- Ramco Cement.
- JK Cement.
What can I add to concrete to make it stronger?
Concrete is rated on a system that indicates the strength of the mix after it’s cured for approximately a month. To make the concrete stronger, add more cement or less sand. The closer you bring the ratio to an even one-to-one of sand to cement, the stronger the rating becomes.
What to add to mortar to make it waterproof?
For the masonry of exterior walls with hard brick one often uses 1 part cement, 3.5 parts sand, 0.25 part lime. While for the same job, but with much softer limestone, a completely different mixing ratio is advised, namely 1 part cement, 9 parts sand, 2 parts lime.