{"id":42,"date":"2016-09-02T06:39:14","date_gmt":"2016-09-02T01:09:14","guid":{"rendered":"http:\/\/onlinecivilforum.com\/site\/?p=42"},"modified":"2022-12-15T22:14:40","modified_gmt":"2022-12-15T16:44:40","slug":"things-site-engineers-must-know","status":"publish","type":"post","link":"https:\/\/onlinecivilforum.com\/site\/things-site-engineers-must-know\/","title":{"rendered":"Things Site Engineers Must Know"},"content":{"rendered":"
\n

Things Site Engineers Must Know<\/span><\/span><\/strong><\/h1>\n

A site engineer offers advice in the\u00a0planning<\/b>, co-ordination and supervision of technical aspects of construction projects. A site engineer’s role is vital to a construction project: they have a number of responsibilities including solving technical issues, providing advice,\u00a0management<\/b>\u00a0and preparing reports.<\/p>\n<\/div>\n

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Minimum thickness of slab is 125 mm.<\/p>\n<\/div>\n

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Water absorption should not be more than 15 %.<\/p>\n<\/div>\n

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Dimension tolerance for cubes + \u2013 2 mm.<\/p>\n<\/div>\n

\n

Compressive strength of Bricks is 3.5 N \/mm2<\/span><\/p>\n<\/div>\n

\n

Maximum Free fall of concrete allowed is 1.50 m.<\/p>\n<\/div>\n

\n

In soil filling as per IS code for every 100 sqm 3 sample for core cutting test should be taken.<\/p>\n<\/div>\n

\n

Electrical conduits shall not run in column<\/p>\n<\/div>\n

\n

Earth work excavation for basement above 3 m should be stepped form<\/p>\n<\/div>\n

\n

Any back filling shall be compacted 95% of dry density at the optimum moisture content and in layers not more than 200mm for filling above structure and 300 mm for no structure<\/p>\n<\/div>\n

\n

F soling is specified the soling stones shall be laid at 45\u00b0 to 60\u00b0 inclination (and not vertical) with interstices filled with sand or moorum.<\/p>\n<\/div>\n

\n

A set of cube tests shall be carried out for each 30 cum of concrete \/ each levels of casting \/ each batch<\/p>\n

of cement.<\/p>\n<\/div>\n

\n

Water cement ratio for different grades of concrete shall not exceed 0.45 for M20 and above and 0.50 For M10 \/ M15 contractor<\/p>\n<\/div>\n

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For concrete grades M20 and above approved admixture shall be used as per mix design requirements.<\/p>\n<\/div>\n

\n

Cement shall be stored in dry places on a raised platform about 200mm above floor level and 300mm away from walls. Bags to be stacked not more than 10 bags high in such a manner that it is adequately protected from moisture and contamination.<\/p>\n<\/div>\n

\n

Samples from fresh concrete shall be taken and at least a set of 6 cubes of 150mm shall be prepared and<\/p>\n

cured. 3 Cubes each at 7 days and 28 days shall be tested for compressive strength. The test results<\/p>\n

should be submitted to engineer for approval. If results are unsatisfactory necessary action\/rectification\/remedial measures has to be exercised.<\/p>\n<\/div>\n

\n

Water used for both mixing and curing shall be clean and free from injurious amounts of oils, acids, alkalies, salts, sugar and organic materials or other substances that may be deleterious to concrete or steel. The ph shall be generally between 6 and 8.<\/p>\n

Read More\u00a0Work activities for Site Engineer<\/a><\/span><\/span><\/strong><\/h2>\n<\/div>\n
\n

Cement shall be tested for its setting.\u00a0<\/span><\/h3>\n

1. The initial setting time shall not be less than 30 minutes.<\/p>\n

2. The final setting time shall not be more than 10 hours.<\/p>\n<\/div>\n

\n

Slump IS 456\u00a0<\/span><\/p>\n

Lightly reinforced 25 \u2013 75 mm<\/p>\n

Heavily reinforced 75 \u2013 100 mm<\/p>\n

Trench fill (insitu & Tremie) 100 \u2013 150 mm (For Tremie no need of vibrator)<\/p>\n<\/div>\n

\n

Curing Days Required\u00a0<\/span><\/p>\n

Super Sulphate cement : 7 days<\/p>\n

Ordinary Portland cement OPC : 10 days<\/p>\n

Minerals and Admixture added cement : 14 days<\/p>\n<\/div>\n

\n

Cube Samples<\/span><\/strong><\/h2>\n

1 \u2013 5 M3<\/span>\u00a0: 1 No.<\/p>\n

6 \u2013 15 M3<\/span>\u00a0: 2 No\u2019s<\/p>\n

16 \u2013 30 M3<\/span>\u00a0: 3 No\u2019s<\/p>\n

31 \u2013 50 M3<\/span>\u00a0: 4 No\u2019s<\/p>\n

Above 50 M3<\/span>\u00a0: 4 + 1 No of addition sample for each 50 M3<\/span>.<\/p>\n

Above article\u00a0more useful for Site Engineers-Civil<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Things Site Engineers Must Know A site engineer offers advice in the\u00a0planning, co-ordination and supervision of technical aspects of construction projects. A site engineer’s role is vital to a construction project: they have a number of responsibilities including solving technical issues, providing advice,\u00a0management\u00a0and preparing reports. Minimum thickness of slab is 125 mm. Water absorption should …<\/p>\n","protected":false},"author":2264,"featured_media":43,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"two_page_speed":[],"footnotes":""},"categories":[43],"tags":[20],"class_list":["post-42","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-civil-engineer","tag-site-engineer"],"yoast_head":"\nThings Site Engineers Must Know<\/title>\n<meta name=\"description\" content=\"Things Site Engineers Must Know A site engineer offers advice in the\u00a0planning, co-ordination and supervision\" \/>\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\/things-site-engineers-must-know\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Things 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