{"id":6156,"date":"2019-01-26T15:33:06","date_gmt":"2019-01-26T10:03:06","guid":{"rendered":"https:\/\/www.onlinecivilforum.com\/site\/?p=6156"},"modified":"2022-12-13T11:29:03","modified_gmt":"2022-12-13T05:59:03","slug":"concrete-mix-design-m20","status":"publish","type":"post","link":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-design-m20\/","title":{"rendered":"Concrete Mix Design M20"},"content":{"rendered":"\n<p>Concrete Mix Design M20 grade of design detailed given below<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Data<\/strong><\/h3>\n\n\n\n<p>Grade of concrete&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = M 20<\/p>\n\n\n\n<p>Type of cement&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = OPC 53 grade<\/p>\n\n\n\n<p>Maximum size of aggregate&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = 40 mm<\/p>\n\n\n\n<p>Minimum cement content&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = 300 kg\/m3<\/p>\n\n\n\n<p>Maximum cement content&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = 450 kg\/m3<\/p>\n\n\n\n<p>Maximum water cement ratio&nbsp;&nbsp;&nbsp;&nbsp; = 0.55<\/p>\n\n\n\n<p>Degree of workability&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = 75 mm<\/p>\n\n\n\n<p>Exposure condition&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = mild<\/p>\n\n\n\n<p>Specific gravity of cement&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =3.15<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/onlinecivilforum.com\/site\/concrete-design-mix-for-varies-grade-of-concrete\/\">Concrete Design Mix for Varies Grade of Concrete<\/a><\/strong><\/p>\n\n\n\n<p><strong><a href=\"https:\/\/onlinecivilforum.com\/site\/different-grades-of-concrete\/\">Different Grades of Concrete<\/a><\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Specific gravity of aggregate<\/strong><\/h3>\n\n\n\n<p>a) Coarse aggregate = 2.80<\/p>\n\n\n\n<p>b) Fine aggregate = 2.65<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Water absorption <\/strong><\/h3>\n\n\n\n<p>a) Coarse aggregate \u2013 4.02 %<\/p>\n\n\n\n<p>b) Fine aggregate \u2013 1.27 %<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Free moisture <\/strong><\/h3>\n\n\n\n<p>a) Coarse aggregate \u2013 2.378 %<\/p>\n\n\n\n<p>b) Fine aggregate \u2013 0.403 %<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Sieve analysis <\/strong><\/h3>\n\n\n\n<p>a) Coarse aggregate \u2013 3.2<\/p>\n\n\n\n<p>b) Fine aggregate \u2013 2.6<\/p>\n\n\n\n<p>Target mean strength<\/p>\n\n\n\n<p>Mix proportioning for trial<\/p>\n\n\n\n<p>Cement&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\n=399 kg\/m3<\/p>\n\n\n\n<p>Water&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;\n= 191.58 kg\/m3<\/p>\n\n\n\n<p>Fine aggregate&nbsp;&nbsp;&nbsp;&nbsp; =\n650.62 kg\/m3<\/p>\n\n\n\n<p>Coarse aggregate = 1222.14 kg\/m3<\/p>\n\n\n\n<p>Weight density&nbsp;&nbsp;&nbsp; =399\n+ 191.58 + 650.62 + 1222.14 <\/p>\n\n\n\n<p>= 2463.34 kg\/m3<\/p>\n\n\n\n<p>W\/c ratio = 0.48<\/p>\n\n\n\n<p>Field correction <\/p>\n\n\n\n<p>Fine aggregate quantity = 650.62kg\/m3<\/p>\n\n\n\n<p>Absorption = 1.27 %<\/p>\n\n\n\n<p>Quantity of absorption = 1.27\/100 x 650.62<\/p>\n\n\n\n<p>= 8.26 kg\/m3<\/p>\n\n\n\n<p>Surface moisture= 0.403 %<\/p>\n\n\n\n<p>Quantity of surface moisture = 0.403\/100 x 650.62<\/p>\n\n\n\n<p>= 2.62 kg\/m3<\/p>\n\n\n\n<p>Weight of fine aggregate in field condition = 650.62 + 8.26\n\u2013 2.62<\/p>\n\n\n\n<p>= 656.26 kg\/m3<\/p>\n\n\n\n<p>Coarse aggregate quantity = 1222.14 kg\/m3<\/p>\n\n\n\n<p>Quantity of absorption&nbsp;\n= &nbsp;4.02\/100 x 1222.14<\/p>\n\n\n\n<p>= 49.13 kg\/m3<\/p>\n\n\n\n<p>Quantity of surface moisture = 2.378\/100 x 1222.14<\/p>\n\n\n\n<p>= 29.06 kg\/m3<\/p>\n\n\n\n<p>Weight of coarse aggregate in field condition<\/p>\n\n\n\n<p>= 1222.14 + 49.13 \u2013 29.06<\/p>\n\n\n\n<p>= 1242.21 kg\/m3<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/onlinecivilforum.com\/site\/concrete-mix-design-m50\/\">Concrete Mix Design M50<\/a><\/strong><\/p>\n\n\n\n<p><strong><a href=\"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/\">Concrete Mix Design for M40 Grade<\/a><\/strong><\/p>\n\n\n\n<p>As per our test we conclude that all results satisfy the\nrequirement of IS 10262-2009.Our Mix design satisfies the IS requirement. Hence\nwe can proceed further for casting slabs.From the results, we can conclude that\nthe cost of Bubble Deck is less as compared to conventional slabs.Hence, it is\nsuitable for construction in terms of cost, quality and maintenance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Concrete Mix Design M20 grade of design detailed given below Data Grade of concrete&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = M 20 Type of cement&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = OPC 53 grade Maximum size of aggregate&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = 40 mm Minimum cement content&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = 300 kg\/m3 Maximum cement content&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = 450 kg\/m3 Maximum water cement ratio&nbsp;&nbsp;&nbsp;&nbsp; = 0.55 Degree of workability&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = 75 mm &hellip;<\/p>\n","protected":false},"author":2264,"featured_media":6670,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"two_page_speed":[],"footnotes":""},"categories":[22],"tags":[76],"class_list":["post-6156","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-concrete-technology","tag-concrete-mix-design"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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