It has been brought out earlier that CS requires 24 of water by weight of cement and C,S requires 21%. It has also been estimated that on an average 23% of water by weight of cement is required for chemical reaction with Portland cement compounds.<\/p>\n\n\n\n
This 23% of water chemically combines with cement and\ntherefore it is called bound water. A certain quantity of water is imbibed\nwithin the gel-pores. This water is known as gel-water. It can be said that\nbound water and gel-water are complimentary to each other. If the quantity of\nwater is inadequate to fill up the gel-pores, the formations of gel itself will\nstop and if the formation of gel stops there is no question of gel-pores being\npresent. It has been further estimated that about 15 percent by weight of\ncement is required to fill up the gel pores. Therefore, a total 38 percent of\nwater by weight of cement is required for the complete chemical reactions and\nto occupy the space within gel-pores. Of water equal to 38 percent by weight of\ncement is only used It can be noticed that the resultant paste will undergo\nfull hydration and no extra water will be available for the formation of\nundesirable capillary cavities. On the other hand, if more than 38 percent of\nwater is used, then the excess water will cause undesirable capillary cavities.\nSo the greater the water above the minimum required (38 percent), the more will\nbe the undesirable capillary cavities. In all this it is assumed that hydration\nis taking place in a sealed container, where moisture to and from the past does\nnot take place.<\/p>\n","protected":false},"excerpt":{"rendered":"
It has been brought out earlier that CS requires 24 of water by weight of cement and C,S requires 21%. It has also been estimated that on an average 23% of water by weight of cement is required for chemical reaction with Portland cement compounds. This 23% of water chemically combines with cement and therefore […]<\/p>\n","protected":false},"author":1,"featured_media":1422,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[388],"class_list":["post-1421","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-civil-engineering","tag-hydration"],"_links":{"self":[{"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/posts\/1421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/comments?post=1421"}],"version-history":[{"count":1,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/posts\/1421\/revisions"}],"predecessor-version":[{"id":1423,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/posts\/1421\/revisions\/1423"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/media\/1422"}],"wp:attachment":[{"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/media?parent=1421"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/categories?post=1421"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zillionsbuyer.com\/blog\/wp-json\/wp\/v2\/tags?post=1421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}