Geopolymer cement composite containing agriculture solid wastes: mechanical and durability performance

Figures & data

Figure 1. (a) XRD for BFS (b) FTIR for AH dry powders (c) SEM For NF.

Table 1. Chemical oxide % of BFS and AH.

material	Oxide %
	SiO2	Al2O3	Fe2O3	CaO	MgO	SO3	K2O	Na2O	Cl	Cr	Mn2O3	P2O5
BFS	39.26	14.82	0.69	28.33	6.71	1.46	0.69	0.53	0.13	3.817ppm	0.09	0.05
AH	13.55	2.79	1.44	26.072	17.87	11.57	12.05	6.47	3.29	0.16	0.31	3.99

Table 2. GP notation and their composition.

Mixes notation	Wt. %
	slag	AH	Fe3O4
B	100	-	-
AH2.5	97.5	2.5	-
AH5	95	5	-
AH10	90	10	-
AH15	85	15	-
AH10-F	90	10	1%

Figure 2. Setting time of prepared GP pastes.

Figure 3. Compressive strength of the different GP samples when curing at (a) room temperature, (b) 60°C/0.02MPa.

Figure 4. RS% for GP after firring at 300,600 and 800°C a) cured at room temperature, b) hydrothermal cured at 60°C/0.02MPa.

Figure 5. RS% for GP after immersion in sulfuric acid (5%) for 15,30,45 and 60 days a)curing at room temperature for 28 days. B) curing at 60° C/0.02MPa for 28 days.

Figure 6. TG/DTG curves of B and AH10 samples that normally cured for 28 days at room temperature.

Table 3. Weight loss % for B & AH10 mixes at various temperature stages.

Wt. loss%
samples	25–300 °C	300–600° C	600–1000° C	Total Wt. loss%
B	5.52%	4.6%	1.33%	11.45%
AH10	6.85%	7.71%	3.35%	17.91%

Figure 7. XRD for GP curing at 60° C, after curing for 3 and 28 days.

Figure 8. XRD for GP curing at 60° C/0.02MPa, after firring at 300° C and 800 °C for 3 hours.

Figure 9. SEM images for GP hydrothermal cured after 28 days for (a)B,(b) AH10 and (c)AH10-F.

Figure 10. SEM images for firing at 800°C for (a)B,(b) AH10 and (c)AH10-F.

Figure 11. SEM images for immersed in sulfuric acid (1.5N) for 60 days for (a)B,(b) AH10 and (c)AH10-F.