LearnoPlanet Civil Engineering

IS CODE 2131-1981 for standard penetration test

Specific gravity test Specific gravity of soil is the ratio of the unit weight of soil solids to that of the water. It is determined by many methods and they are. Density bottle method Pycnometer method Gas jar method Shrinkage limit method Measuring flask method Density bottle method and Pycnometer method are simple and common methods. In Pycnometer method, Pycnometer is weighed in 4 different cases that is empty weight (M1), empty + dry soil (M2), empty + water + dry soil (M3) and Pycnometer filled with water (M4) at room temperature. From these 4 masses specific gravity is determined by below formula. G=(m2-m1) /(m2-m1)-(m3-m4)

Types of Soil Tests for Building Construction 1. Moisture content test 2. Atterberg limits tests 3. Specific gravity of soil 4. Dry density of soil 5. Compaction test (Proctor’s test) Moisture Content Test on Soil Moisture content or water content in soil is an important parameter for building construction. It is determined by several methods and they are -Oven drying method -Calcium carbide method -Torsion balance method -Pycnometer method -Sand bath method -Radiation method -Alcohol method Of all the above oven drying method is most common and accurate method. In this method the soil sample is taken and weighed and put it in oven and dried at 110° + 5°C. After 24 hours soil is taken out and weighed. The difference between the two weights is noted as weight of water or moisture content in the soil.

Some of the basic Indian Standard codes for reinforced concrete published by the BIS (Bureau of Indian Standards) are: 1. IS 456: 2000 Plain and reinforced concrete-Code of practice. 2. IS 875: 1987 (Part-I to V) Code of practice for design loads. 3. IS 1893: 2002 Criteria for earthquake resistant design of structures. 4. IS 13920: 1993 Ductile detailing of reinforced concrete structures subjected to seismic forces.

Basic Indian Standard Codes for Structural Design Some of the basic Indian Standard codes for reinforced concrete published by the BIS (Bureau of Indian Standards) are: 1. IS 456: 2000 Plain and reinforced concrete-Code of practice. 2. IS 875: 1987 (Part-I to V) Code of practice for design loads. 3. IS 1893: 2002 Criteria for earthquake resistant design of structures. 4. IS 13920: 1993 Ductile detailing of reinforced concrete structures subjected to seismic forces.

Installing video guidence

Installing video guidence

CPHEEO manual for design of storm water drainage system part A