GSB Granular Sub Base Mix Design Report in details

Chetan Yadav

Staff member
GSB - Granular Sub Base Mix Design Report in details

GSB is widely used in construction of roads, This mix design report of GSB consist of following;

Introduction

Physical Requirements of aggregates
GSB physical requirement.png

Design Procedure

Job Mix Formula

Summary

Methodology

Test Reports


Granular Sub Base shall consist of well-graded material (which serves as a drainage layer) in accordance with the requirements of MoRT&H and Technical Specification clause 400 and Table : 400-1. The material shall be laid in one layer as sub-base and necessary according to lines, grades and cross-sections as shown in drawings.
The material to be used for the work shall be crushed stone. The material shall be free from organic or other deleterious constituents and conform to the required specifications.

The gradation test format for GSB is also attached along with water absorption test format.
GSB Gradation.png
 

Attachments

  • GSB Mix Design Report.doc
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  • GSB Test Formats.xls
    146.5 KB · Views: 1,876

Chetan Yadav

Staff member
Are you student or professional
Do you know how designing of GSB is done and what parameter it consist of.

Kindly download attachement go through report and excel file which consist of testing

After going throught it, you will be in position to understand what is GSB and how to design it with attached test excel sheet.
 

samadmsin

Prime CE
GSB - Granular Sub Base Mix Design Report in details

GSB is widely used in construction of roads, This mix design report of GSB consist of following;

Introduction

Physical Requirements of aggregates
View attachment 2124

Design Procedure

Job Mix Formula

Summary

Methodology

Test Reports


Granular Sub Base shall consist of well-graded material (which serves as a drainage layer) in accordance with the requirements of MoRT&H and Technical Specification clause 400 and Table : 400-1. The material shall be laid in one layer as sub-base and necessary according to lines, grades and cross-sections as shown in drawings.
The material to be used for the work shall be crushed stone. The material shall be free from organic or other deleterious constituents and conform to the required specifications.

The gradation test format for GSB is also attached along with water absorption test format.
View attachment 2123
Thanks