International Journal of Concrete Structures and Materials

Table 3 Mix proportion of porous concretes (unit: kg/m³).

From: Heavy Metal Leaching, CO₂ Uptake and Mechanical Characteristics of Carbonated Porous Concrete with Alkali-Activated Slag and Bottom Ash

Series	Binder material	BA	Water	NaOH	Waterglass	W/B	P/G (%)
NS1	248.1	662.3	110.9	13.1	–	0.5	25
NS2	285.6	636.8	127.7	15.1	–	0.5	30
NS3	319.6	613.7	142.9	16.9	–	0.5	35
SS1	259.5	661.7	79.2	8.4	42.2	0.5	25
SS2	297.6	637.0	90.9	9.6	48.4	0.5	30
SS3	333.5	613.6	101.8	10.8	54.2	0.5	35
PC2	365.0	642.4	109.5	–	–	0.3	30

P/G: ratio of paste by the weight of aggregates. NS: porous concrete fabricated with slag and NaOH (Na₂O/Slag: 4 %). SS: porous concrete fabricated with slag, waterglass and NaOH (Na₂O/Slag: 4 %, silicate modulus (Ms): 1.2). PC2: porous concrete fabricated with Portland cement and water.

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