Strength development and microcosmic mechanism of waste glass powder cement mortar

Figures & data

Table 1. Chemical composition of cement.

Composition	SiO2	Al2O3	Na2O3	CaO	MgO	SO3	Burning loss
Mass fraction/%	19.61	4.32	0.79	60.87	2.41	2.54	3.35

Figure 1. Glass powder for test (a) 20–100 mesh (b) 100–200 mesh (c) 200–500 mesh.

Figure 2. XRD spectrum of waste glass powder.

Figure 3. The flow chart of the production of waste glass powder.

Table 2. Chemical composition of waste glass powder.

Composition	SiO2	Fe2O3	Cr2O3	Al2O3	V2O5	TiO2	ZrO2
Mass fraction/%	94.09	2.23	1.19	1.06	0.68	0.54	0.21

Table 3. Bulk density of glass powder and standard sand(kg/m³).

	Water glass powder			Standard sand
	20–100 mesh	100–200 mesh	200–500 mesh
Bulk density (kg/m^3)	1210	1090	840	1350

Table 4. Mix proportion of waste glass powder cement mortar.

Specimen	Waste glass powder particle sizes(mesh)	Waste glass powder content(%)	Cement(g)	Waste glass powder(g)	Standard sand(g)	Water(g)
G0	/	0	450	0	1350	225
G-20-10	20–100	10	450	121	1215	225
G-20-15	20–100	15	450	181.5	1147.5	225
G-20-20	20–100	20	450	242	1080	225
G-100-10	100–200	10	450	109	1215	225
G-100-15	100–200	15	450	163.5	1147.5	225
G-100-20	100–200	20	450	218	1080	225
G-200-10	200–500	10	450	84	1215	225
G-200-15	200–500	15	450	126	1147.5	225
G-200-20	200–500	20	450	168	1080	225

Figure 4. Illustrative flow chart of glass cement mortar specimen preparations.

Figure 5. Effects of replacement level of 20–100 mesh glass powder used as fine aggregate on the mortar strength development.

Figure 6. Effects of replacement level of 100–200 mesh glass powder used as fine aggregate on the mortar strength development.

Figure 7. Effects of replacement level of 200–500 mesh glass powder used as fine aggregate on the mortar strength development.

Figure 8. Strength development with age for cement mortars with different contents of 20–100 mesh glass powders used as fine aggregate.

Figure 9. Strength development with age for cement mortars with different contents of 100–200 mesh glass powders used as fine aggregate.

Figure 10. Strength development with age for cement mortars with different contents of 200–500 mesh glass powders used as fine aggregate.

Figure 11. Effect of glass particle size on compressive strength and flexural strength of cement mortar.

Figure 12. Relationship between compressive strength and flexural strength of cement mortar using glass aggregate.

Figure 13. SEM-EDS images of ordinary cement mortar and glass mortar after 28 d hydration.

Figure 14. SEM images of interface transition zone (ITZ) in the mortar specimens G0, G-20-15 and G-200-15 after 28 d hydration.

Figure 15. SEM-EDS images of 28 d cement mortar with different glass particle sizes.

Figure 16. SEM-EDS images of 28 d cement mortar with different content of 200–500 mesh glass powder.

Data availability statement

All data generated or analysed during this study are included in this submitted article. The raw data shall be made available upon request to the corresponding author.