Research Article

Utilization of Agroresidual Waste in Effective Blending in Portland Cement

Table 3

Microstructural properties of fly ash concrete.

Percentage of replacement levelOven dry weight A (gm)Sat. weight after immersion B (gm)Sat. weight after boiling C (gm)Immersed weight D (gm)Percentage of water absorption after immersion (*) ( ( 𝐵 𝐴 ) / 𝐴 ) × 1 0 0 Percentage of water absorption after boiling ( ( 𝐶 𝐴 ) / 𝐴 ) × 1 0 0 Bulk specific gravity after drying
𝑔 1 = 𝐴 / ( 𝐶 𝐷 )
Bulk specific gravity after immersion 𝐵 / ( 𝐶 𝐷 ) Bulk specific gravity after boiling 𝐶 / ( 𝐶 𝐷 ) Apparent specific gravity
𝑔 2 = 𝐴 / ( 𝐴 𝐷 )
Percentage of volume of permeable voids (**) ( ( 𝑔 2 𝑔 1 ) / 𝑔 2 ) × 1 0 0 Effective porosity
( ( 𝐵 𝐴 ) / 𝑉 ) × 1 0 0

0530.205553.065555.125332.954.314.702.38692.48982.49902.688511.2110.06
5513.00541.09543.095313.515.475.862.23442.35682.36562.571513.1012.45
10524.985552.265554.215330.7455.195.562.34922.47132.48002.702713.0712.02
15525.13553.305554.545331.3155.365.602.35242.47862.48412.709413.1714.08
20521.125552.14554.015326.1555.956.312.28702.42312.43132.672814.4313.44
25515.625548.18549.98321.466.316.662.25632.39882.40672.655617.6914.08
30492.75525.66527.62308.756.677.072.25132.40162.41062.677915.9314.74
35515.535546.41548.805321.716.607.072.25692.40602.41662.685815.9614.54

* ( ( 𝐵 𝐴 ) / 𝐴 ) × 1 0 0 , ** ( ( 𝑔 2 𝑔 1 ) / 𝑔 2 ) × 1 0 0 .