New Plaster Composite with Mineral Wool Fibres from CDW Recycling

Table 6

Tests of average results.

	% waste addition	w/p	Bulk density (g/cm^3)	Surface hardness Shore C	Flexural strength (MPa)	Compressive strength (MPa)
Reference	0%	0.6	1.226	89.867	7.272	17.352
	0%	0.8	1.014	75.400	4.247	8.708
Recycled rock wool	1%	0.6	1.232	90.967	7.990	18.512
	1.5%	0.6	1.212	89.767	6.991	14.330
	2%	0.6	1.243	91.333	7.383	13.237
	2.5%	0.6	1.213	94.333	7.047	15.147
	3%	0.8	1.019	83.333	4.106	6.975
	3.5%	0.8	1.026	82.167	4.427	7.245
	4%	0.8	1.025	86.433	5.050	9.027
	5%	0.8	1.031	84.600	5.172	7.853
	6%	0.8	1.017	83.933	5.366	8.168
	8%	0.8	1.018	81.067	5.134	8.562
	10%	0.8	1.063	82.167	5.376	7.308
Recycled glass wool	1%	0.6	1.238	92.333	7.263	16.613
	1.5%	0.6	1.206	90.100	6.686	12.295
	2%	0.6	1.199	90.433	6.373	12.017
	2.5%	0.6	1.200	90.900	6.722	11.200
	3%	0.8	0.999	78.933	4.283	6.110
	3.5%	0.8	1.004	81.333	4.113	6.559
	4%	0.8	1.009	83.867	4.673	8.153
	5%	0.8	1.011	81.567	4.599	7.315
	6%	0.8	1.020	81.567	4.869	7.240
	8%	0.8	1.045	83.133	5.046	7.542
	10%	0.8	1.056	80.800	5.707	7.522