Material Estimation for M25 grade concrete | Estimation of cement,sand & aggregates in M25 concrete.

Lets estimate !!! Let us consider 1 CUM of M25 grade concrete for the calculation purpose. Here, Cement:sand: aggregates = 1:1:2 (a:b:c) M25 grade means 👉 1:1:2 ratio. Wet volume of M25 grade concrete = 1 CUM. Now, the dry volume of concrete = 1.54 × wet volume of concrete. = [1.54 × 1 cum] = 1.54 cum. 1. Volume of cement required = [{its ratio ÷ (total ratio)} × dry volume of concrete.] =[{ a ÷ (a + b + c)} × dry volume of concrete.] = [{1÷ ( 1 + 1 +2 )} × 1.54] = [{ 1 ÷ 4 } × 1.54] = [0.25 × 1.54] = 0.385 cum. As you know, 1 bag of cement = 0.03472 cum. So, the number of cement bags required = [0.385 cum. ÷ 0.03472 cum.] = 11.089 bags Weight of cement = [11.089 bags × 50 kgs.] (1 bag of cement = 50 kgs.) = 554.44 kgs. 2. Volume of sand required = [{its ratio ÷ (total ratio)} × dry volume of concrete.] =[{ b ÷ (a + b + c)} × dry volume of concrete.] = [{1÷ ( 1 + 1 +2 )} × 1.54] = [{1 ÷ 4 } × 1.54] = [0.25 × 1.54] = 0.385 cum. = 13.60 cu ft. 3. Volume of aggregates required = [{its ratio ÷ (total ratio)} × dry volume of concrete.] =[{ c ÷ (a + b + c)} × dry volume of concrete.] = [{2÷ ( 1 + 1 +2 )} × 1.54] = [{ 2 ÷ 4 } × 1.54] = [0.5 × 1.54] = 0.77cum. = 27.19 cu ft. 4. Volume of water required. Let us consider the w/c ratio for M25 grade concrete as 0.4. i.e. wt. of cement / wt. of water = 0.4 So, the weight. of water = 0.4 × wt. of cement =0.4 × 554.44 kgs = 221.776 kgs = 222 liters ( 1kg= 1 liter) Note: This w/c ratio holds good if you use plasticizers. Practically for good workability, the water we add for the concrete is 250 to 270 liters. Alternate method: 1. Volume of cement ( from above) = 0.385 cum. 2. Volume of sand = [volume of cement × b] = [0.385 cum × 1] = 0.385 cum. 3. Volume of aggregates = [volume of cement × c] = [ 0.385cum × 2] = 0.77 cum. #concrete #estimation #construction #costing Subscribe YouTube Channel :https://tinyurl.com/2857hn48 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Hope You Like 👍 The Video , Subscribe the channel if you are first time Viwer..Share this valuable Quality Content to your Friends & Familiy Members.😊 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ¦¦ Disclaimer ¦¦ Some content is used under fair use for Educational Purposes. Copyright Disclaimer under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favour of fair use. #yahyasir #YAHYA #YAHYASIR #yahyasir