Influencing Factors on the Interface Microhardness of Lightweight Aggregate Concrete Consisting of Glazed Hollow Bead

Table 7

Experimental grouping design and mixing ratios.

Group	Sample number		Content of NS	Prewetting; time/s	Water cement; ratio	Curing humidity
	Sample number for HV	Sample number for CCW content
NS (nanosilica)	NS1	ns1	0%	60	0.55	90%
	NS2	ns2	0.25%	60	0.55	90%
	NS3	ns3	0.5%	60	0.55	90%
	NS4	ns4	0.75%	60	0.55	90%
P (prewetting)	P1	p1	0%	0	0.55	90%
	P2	p2	0%	60	0.55	90%
	P3	p3	0%	120	0.55	90%
	P4	p4	0%	180	0.55	90%
W (W/B)	W1	w1	0%	60	0.45	90%
	W2	w2	0%	60	0.5	90%
	W3	w3	0%	60	0.55	90%
RH (relative humidity)	RH1	rh1	0%	60	0.55	30%
	RH2	rh2	0%	60	0.55	60%
	RH3	rh3	0%	60	0.55	90%