Table of Contents
What is the chemical equation for concrete?
Hydration of Portland Cement
| Cement Compound | Weight Percentage | Chemical Formula |
|---|---|---|
| Tricalcium silicate | 50 % | Ca3SiO5 or 3CaO.SiO2 |
| Tricalcium aluminate | 10 % | Ca3Al2O6 or 3CaO .Al2O3 |
| Tetracalcium aluminoferrite | 10 % | Ca4Al2Fe2O10 or 4CaO.Al2O3.Fe2O3 |
| Gypsum | 5 % | CaSO4.2H2O |
What is the process of making concrete?
First, the cement (usually Portland cement) is prepared. Next, the other ingredients—aggregates (such as sand or gravel), admixtures (chemical additives), any necessary fibers, and water—are mixed together with the cement to form concrete. The concrete is then shipped to the work site and placed, compacted, and cured.
What is the HSN code for cement?
HSN Code 2523
| HS Code | Description | GST% |
|---|---|---|
| 252329 | Portland cement (excluding white, whether or not artificially coloured) | 28% |
| 252330 | Aluminous cement | 28% |
| 252390 | Cement, whether or not coloured (excluding portland cement and aluminous cement) | 28% |
| 25231000 | CEMENT CLINKERS | 28% |
How do you calculate GST on a concrete bag?
GST rates range from 0% to 28%. The government has put into place five different tax slab under which all products and services are listed….Impact of GST on Product Pricing.
| Earlier Tax System | GST |
|---|---|
| Price = Rs. 2,000 | |
| VAT at 10% = Rs. 200 | CGST at 5% = Rs.100 + SGST at 5% = Rs. 100 |
Is code a bag of cement?
For 53 grade cement, IS code used to be IS 12269. All cement bags having 53 grade cement carried IS 12269 mark.
What is the GST formula?
Thus, a simple formula arises: GST Amount = (Original Cost*GST Rate Percentage) / 100. Net Price = Original Cost + GST Amount.
How do I calculate GST in Excel?
Formula for adding GST To do this you simply multiply the value, excluding GST by 15% or by 0.15. To find the total including GST simply add the two values together.
How do you calculate Gstr 3b?
This GSTR-3B calculation Sheet can be used to calculate Monthly GST liability along with late fees and Interest if Any….GSTR-3B Calculation Sheet (Updated on 31.01. 2021)
| Case | Amount of ITC to be claimed by recipient |
|---|---|
| Where invoice/debit note has been uploaded by the supplier in his GTSR-1 | Full ITC, if all other conditions of availing ITC are Fulfilled |
Is concrete a code book?
IS: 456 – code of practice for plain and reinforced concrete.
Is code for concrete mix design?
The proportion and the ratio, in which the materials should be mixed together to obtain a certain grade of the concrete, has already been specified by IS 456:2000….Concrete Mix Design as per IS Code.
| S.No | Grade | Proportion (cement: sand: coarse aggregate) |
|---|---|---|
| 4 | M15 | 1:2:4 |
| 5 | M20 | 1:1.5:3 |
| 6 | M25 | 1:1:2 |
What is the formula to calculate GST?
What is the formula for calculating concrete?
How to Calculate Concrete Formula Know that the formula for calculating concrete consists of the following: ( (length x width x height)/27) x 1.05 = Total concrete needed plus 5 percent extra. Measure the length, width and height of the area to be filled. Multiply the length by the width by the height in the following manner to determine how many cubic feet of concrete you need: 100 x 100 x 1/3
How to calculate quantity of water in concrete?
Water Quantity Calculation for Concrete. For the calculation of water quantity for concrete, first of all, we have to find the quantity of cement. Just assume that the required volume of cement for the mix is 100 kg and W/C is 0.4. Water Quantity = Water-Cement Ratio x Volume of Cement .
What is the formula for mixing concrete?
Another “old rule of thumb” for mixing concrete is 1 cement : 2 sand : 3 gravel by volume. Mix the dry ingredients and slowly add water until the concrete is workable. This mixture may need to be modified depending on the aggregate used to provide a concrete of the right workability.
How do you figure concrete quantity?
How to Find Concrete Block Core Fill Volume Find the Volume of Each Block Void Start by measuring the length, width, and height of the holes in the block in inches. Find the Number of Voids in the Wall The next step is to find the number of voids in the wall. Find the Total Concrete Block Fill Volume