Astm D454621 Pdf __exclusive__ -

Soil is a dynamic material. It changes with moisture content. Two specific problematic soil behaviors are addressed by this standard:

HVn=DRn−DRiHt−DRicap H cap V sub n equals the fraction with numerator cap D cap R sub n minus cap D cap R sub i and denominator cap H sub t minus cap D cap R sub i end-fraction DRncap D cap R sub n is deformation at the end of a loading increment and DRicap D cap R sub i is deformation at the time of saturation . Data Inputs and Requirements astm d454621 pdf