Site Information Required For the Tests Different Types of Tests Integrity Test The commonly used sonic methods, vibration methods, sonic logging techniques, etc, have been tried within the last 15-20 years in different parts of the world. However, the methods based on the One Dimensional Stress Wave approach known as Sonic Integrity Testing, Low Strain … Read more
The first digit relates to the ultimate strength of the material, whilst the second is the ratio of yield stress to ultimate strength. Thus grade 4.6 bolts have an ultimate material strength of 400N/mm2 and the yield (or proof) stress is 60% of the ultimate strength. What is black’bolts? 4.6 grade bolts without corrosion protection … Read more
In India, some bridge engineers have doubts on point of application of horizontal load. Some people consider the point of application of longitudinal and transverse load at the bearing level. Longitudinal force : The longitudinal forces shall be considered as acting horizontally through the knuckle pins in case of bearings having rocking arrangement or through … Read more
Jet Grouting (Horizontal): – An efficient and versatile technical solution for tunnelling in different soil, usually with high granulometry, the presence of intense water flow and high hydraulic gradient. The construction of the Main tunnel and Escape Tunnel through quaternary deposits, consisted of silty-clayey soil with gravels, pebbles, cobbles and occasionally boulders. Horizontal Jet Grouting … Read more
I have a doubt regarding assuming pile cap thickness. There are two theories Beam theory and truss theory. In truss theory, the empirical formula for pile cap depth, when the pile diameter less than 550mm is, D= 2 × dp+100 mm , Where D is the pile cap depth and dp is the pile diameter … Read more
IS 15498 (pdf) 2004 Guidelines for Improving the Cyclonic Resistance of Low Rise Houses and Other Buildings/Structures IS 15499 (pdf) 2004 Guidelines for Survey of Housing and Building Typology in Cyclone Prone Areas for Assessment of Vulnerability of Regions and Post Cyclone Damage Estimation
IS 14458-1 (pdf) 1998 Guidelines for retaining wall for hill area, Part 1: Selection of type of wall IS 14458-2 (pdf) 1997 Guidelines for retaining wall for hill area, Part 2: Design of retaining/breast walls IS 14458-3 (pdf) 1998 Guidelines for retaining wall for hill area, Part 3: Construction of dry stone walls IS 14496-2 … Read more
IS 460-1 (pdf) 1985 Test Sieves: Part-I Wire Cloth Test Sieves IS 460-2 (pdf) 1985 Test Sieves: Part-II Perforated Plate Test Sieves IS 460-3 (pdf) 1985 Test Sieves: Part-III Methods of Examination of Apertures of Test Sieves IS 1568 (pdf) 1970 wire cloth for general purposes IS 1607 (pdf) 1977 Methods for test sieving IS … Read more
IS 432-1 (pdf) 1982 Mild Steel and Medium Tensile Steel Bars and Hard-Drawn Steel Wire for Concrete Reinforcement, Part 1: Mild Steel and Medium Tensile Steel Bars IS 432-2 (pdf) 1982 Mild Steel and Medium Tensile Steel Bars and Hard-Drawn Steel Wire for Concrete Reinforcement, Part 2: Hard-Drawn Steel Wire IS 1566 (pdf) 1982 hard-drawn … Read more
IS 458 (pdf) 2003 Precast Concrete Pipes (with and without Reinforcement) – IS 459 (pdf) 1992 Corrugated and semi-Corrugated Asbestos Cement Sheets – IS 783 (pdf) 1985 Code of Practice for Laying of Concrete Pipes IS 784 (pdf) 2001 Prestressed Concrete Pipes (Including Fittings) – IS 785 (pdf) 1998 Reinforced Concrete Poles for Overhead Power … Read more