{"id":1681,"date":"2017-06-09T09:16:08","date_gmt":"2017-06-09T03:46:08","guid":{"rendered":"http:\/\/onlinecivilforum.com\/site\/?p=1681"},"modified":"2022-12-13T11:33:55","modified_gmt":"2022-12-13T06:03:55","slug":"concrete-mix-m-40-grade","status":"publish","type":"post","link":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/","title":{"rendered":"Concrete Mix Design for M40 Grade"},"content":{"rendered":"

Concrete Mix Design for M40 Grade<\/strong><\/p>\n

Concrete Mix Design for M 40 grade using fly ash given below data:<\/p>\n

 <\/p>\n

(a) Type of cement: OPC 43 grade<\/p>\n

 <\/p>\n

(b) Type of mineral admixture: Fly ash conforming to IS: 3812 (Part-l)<\/p>\n

 <\/p>\n

(c) Maximum nominal size of Aggregate: 20 mm<\/p>\n

 <\/p>\n

(d) Minimum cement content: 320 kg\/ m3<\/sup><\/p>\n

 <\/p>\n

(e) Maximum water-cement ratio: 0.45<\/p>\n

 <\/p>\n

(f) Workability: 100 mm slump<\/p>\n

 <\/p>\n

(g) Exposure condition: Severe (For RCC)<\/p>\n

 <\/p>\n

(h) Method of placing concrete: Pumping<\/p>\n

 <\/p>\n

(I) Degree of supervision: Good<\/p>\n

 <\/p>\n

(j) Type of aggregate: Crushed angular aggregate<\/p>\n

 <\/p>\n

(k)Maximum cement content: 450 kg\/m3<\/p>\n

 <\/p>\n

(1) Chemical admixture type: Super plasticizer<\/p>\n

 <\/p>\n

(m) Specific gravity of cement: 3.15<\/p>\n

 <\/p>\n

Specific gravity of C.A.: 2.74<\/p>\n

 <\/p>\n

Specific gravity of F.A.: 2-74<\/p>\n

 <\/p>\n

Specific gravity of Fly ash: 2.20<\/p>\n

 <\/p>\n

(n) Water absorption<\/p>\n

 <\/p>\n

Coarse aggregate: 0.5%<\/p>\n

 <\/p>\n

Find aggregate: Nil<\/p>\n

 <\/p>\n

(0) Free surface moisture<\/p>\n

 <\/p>\n

Coarse aggregate: Nil<\/p>\n

 <\/p>\n

Find aggregate 1.5%<\/p>\n

Grading of C.A. conforming Table-2 of IS: 383<\/p>\n

Grading of EA. Conforming to grading Z one-Io f Table-4o f IS: 383<\/p>\n

 <\/p>\n

SOLUTION:<\/p>\n

Step-l: Target mean strength <\/strong><\/p>\n

 <\/p>\n

fck_= 40 N\/mm2<\/sup><\/p>\n

fck\u2019=fck + 1.65\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0From Table 6.4 for M40 concrete,<\/p>\n

= 40+ 1.65x 5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 standard deviatio S = 5 N\/mm2<\/sup><\/p>\n

= 48.25 N\/mm2<\/sup><\/p>\n

 <\/p>\n

Step-2: Selection of w\/c ratio <\/strong><\/p>\n

 <\/p>\n

From Table-5 of IS: 456-2000 Table 6.5<\/p>\n

Maximum free w\/c ratio = 0.45<\/p>\n

Based on experience of the mix design w\/c, ratio is taken as 0.40.<\/p>\n

Adopt smaller of the two values,<\/p>\n

w\/c = 0.40<\/p>\n

 <\/p>\n

Step-3 : Selection of water content <\/strong><\/p>\n

 <\/p>\n

Maximum water content.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 From Table-6.6 for nominal maximum size of aggregate 20 mm<\/p>\n

= 186 litre.<\/p>\n

 <\/p>\n

This is for 50 mm slump.<\/p>\n

 <\/p>\n

Increase 3% water for every 25 mm slump over and above 50 mm slump.<\/p>\n

 <\/p>\n

We have slump value of 100 mm, hence increase water content by 6%.<\/p>\n

 <\/p>\n

Estimated water content for 100 mm slump<\/p>\n

=186+6\/100×186<\/p>\n

= 197 litre<\/p>\n

 <\/p>\n

As super plasticizer is used the water content can be reduced up to 20% and above.<\/p>\n

Assume 25% reduction in water content due to super plasticizer,<\/p>\n

Actual water to be used = 197 x 0.75<\/p>\n

= 148 litre.<\/p>\n

 <\/p>\n

Step-4 : Calculation of cement + fly ash content <\/strong><\/p>\n

 <\/p>\n

w\/c ratio = 0.40<\/p>\n

Water used = 148 litre<\/p>\n

Cement + fly ash content, w\/c = 0.40<\/p>\n

 <\/p>\n

C = 148\/0.40<\/p>\n

= 370 kg\/m3<\/sup><\/p>\n

As per IS: 456_2000. Table_5. Minimum cement content for severe exposure condition<\/p>\n

370 kg\/m3<\/sup> > 320 kg\/m3<\/sup> hence O.K.<\/p>\n

 <\/p>\n

Since fly ash is not as active as that of cement. It is usual to increase the cementites<\/p>\n

materially some percentage.<\/p>\n

 <\/p>\n

In this example an increase of 10% is considered.<\/p>\n

 <\/p>\n

Cementitious material (Cement + fly ash) content<\/p>\n

= 370 x 1.10<\/p>\n

= 407 kg\/m3<\/sup><\/p>\n

 <\/p>\n

Water content = 148 litre<\/p>\n

 <\/p>\n

w\/c ratio = 148\/407 = 0.364<\/p>\n

 <\/p>\n

Let us the percentage of fly ash as 30%<\/p>\n

Fly ash content = 407 x 0.30 = 122.0 kg\/m3<\/sup><\/p>\n

Cement content = 407 – 122 = 285 kg\/m3<\/sup><\/p>\n

 <\/p>\n

Therefore. saving of cement while using fly ash: 370 – 285 = 85 kg\/m3<\/sup><\/p>\n

 <\/p>\n

Step-5 : Coarse aggregate and find aggregate content <\/strong><\/p>\n

 <\/p>\n

From Table-6.8. volume of coarse aggregate corresponding to 20 mm maximum size of<\/p>\n

Aggregate and fine aggregate (Zone-I) for water cement ratio 0.50 = 0.60.<\/p>\n

 <\/p>\n

In the present case w\/c = 0.40. i.e. less by 0.10. As the w\/c ratio is reduced it is desirable<\/p>\n

to increase the CA. content to decrease F.A. content.<\/p>\n

 <\/p>\n

For every decrease of w\/c ratio by 0.05, the CA. volume may be increased by 1.0%<\/p>\n

(Le. 0.01).<\/p>\n

 <\/p>\n

As the w\/c ratio is less by 0.10, the CA. volume is increased by 0.02.<\/p>\n

Corrected proportion of volume of CA. = 0.60 + 0.02 = 0.62<\/p>\n

 <\/p>\n

For pumpable concrete, C.A. volume can be reduced by 10%.<\/p>\n

 <\/p>\n

Final volume of CA. = 0.62 X 0.90 = 056<\/p>\n

 <\/p>\n

Volume of EA. = l – 0.56 = 0.44<\/p>\n

 <\/p>\n

Step-6: Calculation of Mix Proportions <\/strong><\/p>\n

 <\/p>\n

(1) Volume of concrete = 1 m3<\/sup><\/p>\n

 <\/p>\n

(2) Volume of cement mass of cement =\u00a0 mass of cement\/specific gravity of cement x 1\/100=<\/p>\n

= 285\/3.15 x 1\/100 = 0.090 m3<\/sup><\/p>\n

 <\/p>\n

3) Mass of fly ash = mass of fly \/ specific gravity of fly ash x 1\/100 = 122x 1\/100<\/p>\n

= 0.055 m3<\/sup><\/p>\n

 <\/p>\n

4) Volume of water = mass of water \/ specific gravity of water x 1\/100 = 148\/1 x 1\/100<\/p>\n

= 0.148 m3<\/sup><\/p>\n

 <\/p>\n

(5) Volume of chemical admixture (supper plasticizer) @ 2.0% by mass of cementitious<\/p>\n

 <\/p>\n

= mass of chemical admixture \/ specific gravity of chemical admixture x 1\/100<\/p>\n

=\u00a0 8.14\/1.145 x 1\/100<\/p>\n

= 0.0071 m3<\/sup><\/p>\n

 <\/p>\n

Absolute volume of all the materials except total aggregates<\/p>\n

= 0.09 + 0055 + 0.148 + 0.0071<\/p>\n

= 0.3 m3<\/p>\n

 <\/p>\n

Absolute volume of total aggregate:- 1 – 0.3<\/p>\n

 <\/p>\n

    \n
  1. = 0.7 m3<\/sup><\/li>\n<\/ol>\n

    Mass of CA. =\u00a0 V. x Volume of CA. x Sp.gravity of CA. x 1000<\/p>\n

     <\/p>\n

    = 0.7 x 0.56 x 2.74 x 1000<\/p>\n

    = 1074 kg<\/p>\n

     <\/p>\n

    Mass of EA. = V. x Volume of FA. x Sp. Gravity of EA. x 1000<\/p>\n

    = 0.7 x 0.44 x 2.74 x 1000<\/p>\n

    = 844 kg<\/p>\n

     <\/p>\n

    Step-7 : Mix Proportions for Trial No. l :\u00a0 <\/strong><\/p>\n

     <\/p>\n

    Cement : 285 kg\/m3<\/sup><\/p>\n

    Fly ash : 122kg<\/p>\n

    Water : 148 litre<\/p>\n

    Fine aggregate : 844 kg\/m3<\/sup><\/p>\n

    Coarse aggregate : 1074 kg\/m3<\/sup><\/p>\n

    Chemical admixture : 8.14 kglm3<\/sup><\/p>\n

    Wet densityof concrete= 2481 ltglm3<\/sup><\/p>\n

    w\/c ratio= 148\/407<\/p>\n

    = 0.364<\/p>\n

     <\/p>\n

    We may use 40% 0f 10 mm sizeand60% of 20 mm size of aggregate.<\/p>\n

     <\/p>\n

    Quantity of mm size aggregate =ga%tex1074= 429.k6g \/m3<\/sup><\/p>\n

    Quantiotyf20mmsizeaggreg=at\u00a3ex1074 = 644.4k g\/m3<\/sup><\/p>\n

     <\/p>\n

    Step_8: Site corrections for water absorption and surface moisture <\/strong><\/p>\n

     <\/p>\n

    Quantity of F.A. = 844 kg<\/p>\n

     <\/p>\n

    Absorption = Nil<\/p>\n

     <\/p>\n

    Surface moisture = 1.5%<\/p>\n

     <\/p>\n

    Quantity of surface moisture = 1.5\/100×844 = 12.66 kg<\/p>\n

     <\/p>\n

    Mass of FA. In field condition = 844 + 12.66 = 856.66 kg\/m3<\/sup><\/p>\n

    Absorption of C.A= 0.5\/100×844=5.37g<\/p>\n

    Mass of CA. in field condition = 1074-5.37 = 1068.63 kg\/m3<\/sup><\/p>\n

     <\/p>\n

    As regards to water, 12.66 kg of water is contributed by F.A. and 5.37 kg of water is<\/p>\n

    Absorbed by CA.<\/p>\n

     <\/p>\n

    Therefore, 12.66-5.37 = 7.29 kg of extra water is contributed .This quantity of water<\/p>\n

    Is to be deducted from total water.<\/p>\n

    Net quantity of water required= 148-7.29 = 140.71 kg\/m3<\/sup><\/p>\n

     <\/p>\n

    Step-9: Mix Proportions (by mass): <\/strong><\/p>\n

     <\/p>\n

    Water\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Cement+ Fly ash\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 F.A.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 CA.<\/p>\n

    140.71 lit.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 285kg+ 122= 407kg\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 856.66 kg\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1068.6k3g<\/p>\n

    0.345\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a02.105\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2.625<\/p>\n

     <\/p>\n

    Final quantities of materials:<\/p>\n

     <\/p>\n

    Cement: 285 kg\/m3<\/sup>.<\/p>\n

    Fly ash: 122 kg\/m3<\/sup><\/p>\n

    Water; 140.71 kg\/m3<\/sup><\/p>\n

    Fine aggregate 856.66 kg\/m3<\/sup><\/p>\n

    Coarse aggregate 1068.63 kg\/m3<\/sup><\/p>\n

    Chemical admixture =8.14 kg\/m3<\/sup><\/p>\n

    _______________________________________<\/p>\n

    Wet density of concrete= 2481 kg\/m3<\/sup><\/p>\n","protected":false},"excerpt":{"rendered":"

    Concrete Mix Design for M40 Grade Concrete Mix Design for M 40 grade using fly ash given below data:   (a) Type of cement: OPC 43 grade   (b) Type of mineral admixture: Fly ash conforming to IS: 3812 (Part-l)   (c) Maximum nominal size of Aggregate: 20 mm   (d) Minimum cement content: 320 …<\/p>\n","protected":false},"author":2264,"featured_media":1683,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"two_page_speed":[],"footnotes":""},"categories":[22],"tags":[69,76,77],"class_list":["post-1681","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-concrete-technology","tag-concrete","tag-concrete-mix-design","tag-m40"],"yoast_head":"\nConcrete Mix Design for M40 Grade - Online Civil<\/title>\n<meta name=\"description\" content=\"Concrete Mix Design for M40 Grade Design a concrete mix for M 40 grade using fly ash\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Concrete Mix Design for M40 Grade - Online Civil\" \/>\n<meta property=\"og:description\" content=\"Concrete Mix Design for M40 Grade Design a concrete mix for M 40 grade using fly ash\" \/>\n<meta property=\"og:url\" content=\"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/\" \/>\n<meta property=\"og:site_name\" content=\"Online CivilForum\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/civilwork\" \/>\n<meta property=\"article:published_time\" content=\"2017-06-09T03:46:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-12-13T06:03:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/onlinecivilforum.com\/site\/wp-content\/uploads\/2017\/06\/Design-a-concrete-mix-for-M-40-grade-using-fly-ash-jpg.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1599\" \/>\n\t<meta property=\"og:image:height\" content=\"838\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@thomasjbritto\" \/>\n<meta name=\"twitter:site\" content=\"@thomasjbritto\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/\"},\"author\":{\"name\":\"Admin\",\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/#\\\/schema\\\/person\\\/ccbccea3895033bfa0aa3bc0683d83ef\"},\"headline\":\"Concrete Mix Design for M40 Grade\",\"datePublished\":\"2017-06-09T03:46:08+00:00\",\"dateModified\":\"2022-12-13T06:03:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/\"},\"wordCount\":942,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/wp-content\\\/uploads\\\/2017\\\/06\\\/Design-a-concrete-mix-for-M-40-grade-using-fly-ash-jpg.webp\",\"keywords\":[\"Concrete\",\"Concrete Mix Design\",\"M40\"],\"articleSection\":[\"Concrete Technology\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/\",\"url\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/\",\"name\":\"Concrete Mix Design for M40 Grade - Online Civil\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/wp-content\\\/uploads\\\/2017\\\/06\\\/Design-a-concrete-mix-for-M-40-grade-using-fly-ash-jpg.webp\",\"datePublished\":\"2017-06-09T03:46:08+00:00\",\"dateModified\":\"2022-12-13T06:03:55+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/#\\\/schema\\\/person\\\/ccbccea3895033bfa0aa3bc0683d83ef\"},\"description\":\"Concrete Mix Design for M40 Grade Design a concrete mix for M 40 grade using fly ash\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/#primaryimage\",\"url\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/wp-content\\\/uploads\\\/2017\\\/06\\\/Design-a-concrete-mix-for-M-40-grade-using-fly-ash-jpg.webp\",\"contentUrl\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/wp-content\\\/uploads\\\/2017\\\/06\\\/Design-a-concrete-mix-for-M-40-grade-using-fly-ash-jpg.webp\",\"width\":1599,\"height\":838},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/concrete-mix-m-40-grade\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Concrete Technology\",\"item\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/category\\\/concrete-technology\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Concrete Mix Design for M40 Grade\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/#website\",\"url\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/\",\"name\":\"Online CivilForum\",\"description\":\"Online Civilforum based recruitment news site that aims to spread the construction knowledge to all over the World.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/onlinecivilforum.com\\\/site\\\/#\\\/schema\\\/person\\\/ccbccea3895033bfa0aa3bc0683d83ef\",\"name\":\"Admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/cdf45ee29d77ef3d29bfff6e0c7a02774edc163b7d650db08ea7ffabd5deffba?s=96&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/cdf45ee29d77ef3d29bfff6e0c7a02774edc163b7d650db08ea7ffabd5deffba?s=96&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/cdf45ee29d77ef3d29bfff6e0c7a02774edc163b7d650db08ea7ffabd5deffba?s=96&r=g\",\"caption\":\"Admin\"},\"description\":\"My name is Thomas Britto.I am a civil engineer from India.I know there were many people who struggle for information during graduation or after seeking their job.I have started this website for providing basic knowledge and New technologies which were implementing all over the world. we will definitely provide valuable information for you all. stay connected and Follow us on other social media platforms. Thank you !\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Concrete Mix Design for M40 Grade - Online Civil","description":"Concrete Mix Design for M40 Grade Design a concrete mix for M 40 grade using fly ash","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/","og_locale":"en_US","og_type":"article","og_title":"Concrete Mix Design for M40 Grade - Online Civil","og_description":"Concrete Mix Design for M40 Grade Design a concrete mix for M 40 grade using fly ash","og_url":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/","og_site_name":"Online CivilForum","article_publisher":"https:\/\/www.facebook.com\/civilwork","article_published_time":"2017-06-09T03:46:08+00:00","article_modified_time":"2022-12-13T06:03:55+00:00","og_image":[{"width":1599,"height":838,"url":"https:\/\/onlinecivilforum.com\/site\/wp-content\/uploads\/2017\/06\/Design-a-concrete-mix-for-M-40-grade-using-fly-ash-jpg.webp","type":"image\/jpeg"}],"author":"Admin","twitter_card":"summary_large_image","twitter_creator":"@thomasjbritto","twitter_site":"@thomasjbritto","twitter_misc":{"Written by":"Admin","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/#article","isPartOf":{"@id":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/"},"author":{"name":"Admin","@id":"https:\/\/onlinecivilforum.com\/site\/#\/schema\/person\/ccbccea3895033bfa0aa3bc0683d83ef"},"headline":"Concrete Mix Design for M40 Grade","datePublished":"2017-06-09T03:46:08+00:00","dateModified":"2022-12-13T06:03:55+00:00","mainEntityOfPage":{"@id":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/"},"wordCount":942,"commentCount":0,"image":{"@id":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/#primaryimage"},"thumbnailUrl":"https:\/\/onlinecivilforum.com\/site\/wp-content\/uploads\/2017\/06\/Design-a-concrete-mix-for-M-40-grade-using-fly-ash-jpg.webp","keywords":["Concrete","Concrete Mix Design","M40"],"articleSection":["Concrete Technology"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/","url":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/","name":"Concrete Mix Design for M40 Grade - Online Civil","isPartOf":{"@id":"https:\/\/onlinecivilforum.com\/site\/#website"},"primaryImageOfPage":{"@id":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/#primaryimage"},"image":{"@id":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/#primaryimage"},"thumbnailUrl":"https:\/\/onlinecivilforum.com\/site\/wp-content\/uploads\/2017\/06\/Design-a-concrete-mix-for-M-40-grade-using-fly-ash-jpg.webp","datePublished":"2017-06-09T03:46:08+00:00","dateModified":"2022-12-13T06:03:55+00:00","author":{"@id":"https:\/\/onlinecivilforum.com\/site\/#\/schema\/person\/ccbccea3895033bfa0aa3bc0683d83ef"},"description":"Concrete Mix Design for M40 Grade Design a concrete mix for M 40 grade using fly ash","breadcrumb":{"@id":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/#primaryimage","url":"https:\/\/onlinecivilforum.com\/site\/wp-content\/uploads\/2017\/06\/Design-a-concrete-mix-for-M-40-grade-using-fly-ash-jpg.webp","contentUrl":"https:\/\/onlinecivilforum.com\/site\/wp-content\/uploads\/2017\/06\/Design-a-concrete-mix-for-M-40-grade-using-fly-ash-jpg.webp","width":1599,"height":838},{"@type":"BreadcrumbList","@id":"https:\/\/onlinecivilforum.com\/site\/concrete-mix-m-40-grade\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/onlinecivilforum.com\/site\/"},{"@type":"ListItem","position":2,"name":"Concrete Technology","item":"https:\/\/onlinecivilforum.com\/site\/category\/concrete-technology\/"},{"@type":"ListItem","position":3,"name":"Concrete Mix Design for M40 Grade"}]},{"@type":"WebSite","@id":"https:\/\/onlinecivilforum.com\/site\/#website","url":"https:\/\/onlinecivilforum.com\/site\/","name":"Online CivilForum","description":"Online Civilforum based recruitment news site that aims to spread the construction knowledge to all over the World.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/onlinecivilforum.com\/site\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/onlinecivilforum.com\/site\/#\/schema\/person\/ccbccea3895033bfa0aa3bc0683d83ef","name":"Admin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/cdf45ee29d77ef3d29bfff6e0c7a02774edc163b7d650db08ea7ffabd5deffba?s=96&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/cdf45ee29d77ef3d29bfff6e0c7a02774edc163b7d650db08ea7ffabd5deffba?s=96&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/cdf45ee29d77ef3d29bfff6e0c7a02774edc163b7d650db08ea7ffabd5deffba?s=96&r=g","caption":"Admin"},"description":"My name is Thomas Britto.I am a civil engineer from India.I know there were many people who struggle for information during graduation or after seeking their job.I have started this website for providing basic knowledge and New technologies which were implementing all over the world. we will definitely provide valuable information for you all. stay connected and Follow us on other social media platforms. Thank you !"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/onlinecivilforum.com\/site\/wp-json\/wp\/v2\/posts\/1681","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onlinecivilforum.com\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onlinecivilforum.com\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onlinecivilforum.com\/site\/wp-json\/wp\/v2\/users\/2264"}],"replies":[{"embeddable":true,"href":"https:\/\/onlinecivilforum.com\/site\/wp-json\/wp\/v2\/comments?post=1681"}],"version-history":[{"count":0,"href":"https:\/\/onlinecivilforum.com\/site\/wp-json\/wp\/v2\/posts\/1681\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onlinecivilforum.com\/site\/wp-json\/wp\/v2\/media\/1683"}],"wp:attachment":[{"href":"https:\/\/onlinecivilforum.com\/site\/wp-json\/wp\/v2\/media?parent=1681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onlinecivilforum.com\/site\/wp-json\/wp\/v2\/categories?post=1681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onlinecivilforum.com\/site\/wp-json\/wp\/v2\/tags?post=1681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}