{"id":1636,"date":"2017-05-02T14:50:12","date_gmt":"2017-05-02T09:20:12","guid":{"rendered":"http:\/\/onlinecivilforum.com\/site\/?p=1636"},"modified":"2022-12-13T11:33:57","modified_gmt":"2022-12-13T06:03:57","slug":"field-tests-for-bricks","status":"publish","type":"post","link":"https:\/\/onlinecivilforum.com\/site\/field-tests-for-bricks\/","title":{"rendered":"Field Tests for Bricks"},"content":{"rendered":"

Field Tests for Bricks :<\/strong><\/p>\n

Field Tests for Bricks\u00a0<\/strong>\u00a0generally\u00a0 subjected\u00a0 to\u00a0 suitability of the construction work.<\/p>\n

    \n
  1. Absorption<\/li>\n
  2. Crushing strength or compression strength<\/li>\n
  3. Hardness<\/li>\n
  4. Presence soluble salts<\/li>\n
  5. Shape and size<\/li>\n
  6. Soundness<\/li>\n
  7. Structure<\/li>\n<\/ol>\n

    1)\u00a0 Absorption:<\/strong> A good should not absorb not more than 20 percent of weight of dry brick<\/p>\n

    2)\u00a0 Compressive\u00a0 strength:<\/strong>\u00a0 crushing\u00a0 or\u00a0 compressive\u00a0 strength\u00a0 of brick is found out by placing it in compression testing machine. It is\u00a0 pressed\u00a0 till\u00a0 it\u00a0 breaks.\u00a0 Minimum\u00a0 crushing\u00a0 strength\u00a0 of\u00a0 brick\u00a0 is Bricks \u00a035kg\/cm 2\u00a0\u00a0 and\u00a0 for\u00a0 superior\u00a0 bricks,\u00a0 it\u00a0 may\u00a0 vary\u00a0 from\u00a0 70\u00a0 to\u00a0 140 kg\/cm 2 .<\/p>\n

    3)\u00a0 Hardness:<\/strong>\u00a0 No\u00a0 impression\u00a0 is\u00a0 left\u00a0 on\u00a0 the\u00a0 surface\u00a0 the\u00a0 brick\u00a0 is treated to be sufficiently hard<\/p>\n

    4)\u00a0 Presence of soluble salts:<\/strong> The bricks should not show any grey or white deposits after immerted in water for 24 hours<\/p>\n

    5)\u00a0 Shape and size:<\/strong> It should be standard size and shape with sharp edges<\/p>\n

    6)\u00a0 Soundness:<\/strong>\u00a0 The\u00a0 brick\u00a0 should\u00a0 give\u00a0 clear\u00a0 ringing\u00a0 sound\u00a0 struck each other<\/p>\n

    7)\u00a0 Structure:<\/strong>\u00a0 The\u00a0 structure\u00a0 should\u00a0 be\u00a0 homogeneous,\u00a0 compact\u00a0 and free from any defects<\/p>\n

     <\/p>\n

    Grading of Bricks <\/strong><\/p>\n

    As per IS10719557 and 1970 code specifications,<\/p>\n

      \n
    1. Bricks with\u00a0 compressive\u00a0 strength\u00a0 not\u00a0 less\u00a0 than\u00a0 140kg\/cm2\u00a0 \u2013 Grade A-A class.<\/li>\n
    2. Bricks with compressive strength not less than 105kg\/cm2 \u2013 First class bricks – Grade A.<\/li>\n
    3. Bricks with\u00a0 compressive\u00a0 strength\u00a0 not\u00a0 less\u00a0 than\u00a0 70kg\/cm2\u00a0 \u2013 Second class bricks \u2013 Grade B.<\/li>\n
    4. Bricks with compressive strength not less than the average value 35kg\/cm2 \u2013 class III bricks \u2013 Grade C.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

      Field Tests for Bricks : Field Tests for Bricks\u00a0\u00a0generally\u00a0 subjected\u00a0 to\u00a0 suitability of the construction work. Absorption Crushing strength or compression strength Hardness Presence soluble salts Shape and size Soundness Structure 1)\u00a0 Absorption: A good should not absorb not more than 20 percent of weight of dry brick 2)\u00a0 Compressive\u00a0 strength:\u00a0 crushing\u00a0 or\u00a0 compressive\u00a0 strength\u00a0 …<\/p>\n","protected":false},"author":2264,"featured_media":1637,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"two_page_speed":[],"footnotes":""},"categories":[57],"tags":[71,72],"class_list":["post-1636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-field-tests","tag-bricks","tag-field-test"],"yoast_head":"\nField Tests for Bricks<\/title>\n<meta name=\"description\" content=\"Field Tests for Bricks : Field Tests for Bricks generally subjected to suitability of the construction work. 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