No Fines Concrete
Name: No Fines Concrete
Materials: Portland Cement, Water and Coarse Aggregates [In some cases fly ashes also]
Widely Used: In United Kingdom and several countries of Europe.
Strength: Varies from 200 - 2000 psi
Young's Modulus of Elasticity: Varies from 1 x 10^6 to 1.5 x 10^6 psi
Shrinkage Factor (when coarse aggregate is river gravel or crushed limestone): 2 x 10^ -6
Advantages: i) Higher Thermal Insulating Values ii) Low cost iii) Lower Shrinkage and iv) Lower Unit Weight
Disadvantages: i) Lower compressive strength ii) Higher Permeability
Applications: i) Sub-base material for dam-proofing slab or pavement ii) Small retaining wall (specially Allan Block Retaining Wall iii) In one storied building as load bearing component.
References:
1. https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&ID=11104
2. http://www.allanblock.com/retaining-walls/no-fines-concrete.aspx
Materials: Portland Cement, Water and Coarse Aggregates [In some cases fly ashes also]
Widely Used: In United Kingdom and several countries of Europe.
Strength: Varies from 200 - 2000 psi
Young's Modulus of Elasticity: Varies from 1 x 10^6 to 1.5 x 10^6 psi
Shrinkage Factor (when coarse aggregate is river gravel or crushed limestone): 2 x 10^ -6
Advantages: i) Higher Thermal Insulating Values ii) Low cost iii) Lower Shrinkage and iv) Lower Unit Weight
Disadvantages: i) Lower compressive strength ii) Higher Permeability
Applications: i) Sub-base material for dam-proofing slab or pavement ii) Small retaining wall (specially Allan Block Retaining Wall iii) In one storied building as load bearing component.
References:
1. https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&ID=11104
2. http://www.allanblock.com/retaining-walls/no-fines-concrete.aspx