Open AccessCBR Characteristics of Cementitious Graded Gravel Soils by Curing Methods
Author(s) -
Ganja Sekar Chandra,
Satyanarayana P.V.V,
P. Ganapati Naidu
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1126/1/012078
Subject(s) - gradation , durability , soil water , compaction , base course , cementitious , cement , curing (chemistry) , california bearing ratio , environmental science , sieve analysis , compressive strength , geotechnical engineering , service life , water content , materials science , composite material , soil science , geology , asphalt , computer science , computer vision
The service life and performance of pavements mainly depends on the quality of materials used in the construction, Majority of local soils in their natural form lack in desired strength and durability required for the intended constructions, they are to be improved through the standard process of stabilization to make them suitable as one of the construction material, The cement treated soils are widely used in granular base and sub-base courses of pavements as construction material due to batter strength and durability. The current study there are three different locally available gravel soils has been selected and tested for their physical properties, compaction and strength characteristics, as per the test results the soils were classified as GM-GC, GC-1 and GC-2 and CBR% values were 28, 26 and 25 respectively, as per MORTH specifications CBR%>35 to use as base course material, hence the selected soils could not be used as base course material due to its low CBR values, so that cement stabilization has been used to improve the CBR% values. The different percentages of cement 0%, 1 %, 2% 15% were added to GM-GC, GC-1 and GC-2 soils with gradation of G-50%(26.5 mm to 4.75mm IS-Sieves) and G-50% (4.75mm to 0.002mm IS-Sieves) and tests were conducted to assess the compaction and strength characteristics by varying curing methods as 7days moisture, 7days water and 7days partial curing (3days maisture+4days water). As per the experimental results, it observed that among selected soils GM-GC soil has achieved CBR% of 85-101 with addition of 6-7% of cement under the partial curing (3M-4W) for 7days, it is more than appropriate to use this soil as base course material in road construction as per the MORTH (CBR %> 35)specifications.