5 EASY STEPS TO CHOOSE MOST APPROPRIATE TYPE OF FOUNDATION

Different type of foundations

There are three principle factors to consider before choosing the most appropriate type of foundation for a given structure. These are as follow Function of the structure and loads it must carry The sub surface condition Cost of foundation in comparison with cost of the superstructure Because of these factors, there exist several acceptable solutions … Read more

Physical Requirement for Grade PSC (Portland Slag Cement)-(IS-455)

When a Portland Slag cement is tested for its physical requirements, then it must satisfy the following specifications given by IS 12269. The fineness value of PSC when tested by Blaine’s air permeability method shall not be less than 225 m2/kg. The expansion value (i.e. soundness) of unaerated cement when tested by Le-Chaelier method shall … Read more

Physical Requirement for Calcined Clay based PPC (Portland Pozzolana Cement)-(IS-1489-Part 2)

When a calcined clay based Portland Pozzolana cement is tested for its physical requirements, then it must satisfy the following specifications given by IS 1489-Part 2. The fineness value of fly ash based PPC when tested by Blaine’s air permeability method shall not be less than 300 m2/kg. The expansion value (i.e. soundness) of unaerated … Read more

Physical Requirement for Fly Ash based PPC (Portland Pozzolana Cement)-(IS-1489-Part 1)

When a fly ash based Portland Pozzolana cement is tested for its physical requirements, then it must satisfy the following specifications given by IS 1489-Part 1. The fineness value of fly ash based PPC when tested by Blaine’s air permeability method shall not be less than 300 m2/kg. The expansion value (i.e. soundness) of unaerated … Read more

Physical Requirement for Rapid Hardening Portland Cement)-(IS-8041)

When a RHPC (Rapid Hardening Portland cement) is tested for its physical requirements, then it must satisfy the following specifications given by IS 8041. The fineness value of RHPC when tested by Blaine’s air permeability method shall not be less than 325 m2/kg. The expansion value (i.e. soundness) of unaerated cement when tested by Le-Chaelier … Read more

Physical Requirement for 53 Grade OPC (Ordinary Portland Cement)-(IS-12269)

When a 53 grade ordinary Portland cement is tested for its physical requirements, then it must satisfy the following specifications given by IS 12269. The fineness value of 53 grade OPC when tested by Blaine’s air permeability method shall not be less than 225 m2/kg. The expansion value (i.e. soundness) of unaerated cement when tested … Read more

Physical Requirement for 43 Grade OPC (Ordinary Portland Cement)-(IS-8112)

When a 43 grade ordinary Portland cement is tested for its physical requirements, then it must satisfy the following specifications given by IS 8112. The fineness value of 43 grade OPC when tested by Blaine’s air permeability method shall not be less than 225 m2/kg. The expansion value (i.e. soundness) of unaerated cement when tested … Read more

Physical Requirement for 33 Grade OPC (Ordinary Portland Cement)-(IS-269)

When a 33 grade Ordinary Portland cement is tested for its physical requirements, then it must satisfy the following specifications given by IS 269. The fineness value of 33 grade OPC when tested by Blaine’s air permeability method shall not be less than 225 m2/kg. The expansion value (i.e. soundness) of unaerated cement when tested … Read more

Checklist Used by Consultants for Cement Concrete Pavements

The role of a consultant is not to find faults but to suggest and implement suitable remedial measures and to assist in achieving quality workmanship during the course of execution. Consultants generally follow the following checklist to ensure the quality of the cement concrete pavement during the time of construction. Ensure that mix design is … Read more

10+ FORMULAS TO SOLVE GEO TECHNICAL PROBLEMS ON PHASE RELATIONSHIP

Weight Volume Relationship

Phase problems are very important in soil engineering. Below are given most commonly used formulas to solve problems related to weight volume calculations. The notations used in these formulas are as follows,   γb = Bulk density of soil mass γw = Density of water γsat = Saturated density γsub = Submerged density G = … Read more