Table 2.
Formulas for Physical Properties in This Study

Number Formula Explanation Standard
(1) Moisture  contents % = W n W o W o x 100 Wn: Weight of air-dried sampleWo: Weight of oven-dried sample KS F 2199
(2) Volume  reduction  rate % = V i V o V i x 100 Vi: Volume of initial sampleVo: Volume of oven-dried sample KS F 2198
(3) Weight  reduction  rate % = W i W o W i x 100 Wi: Weight of initial sampleWo: Weight of oven-dried sample KS F 2198
(4) Density % = W V W: Weight of sampleV: Volume of sample KS F 2198