Effects of Magnetite Aggregate and Steel Powder on Thermal Conductivity and Porosity in Concrete for Nuclear Power Plant

Table 1

Mix proportions for concrete test.

Type	Unit content (kg/m^3)									(%)
	W	C	FA	G	S	WRA	MG	MS	SP
Control	163	324	82	935	750	2	0	0	0	0
M50M25	210	420	105	468	563	2	468	188	0	22.9
M50M25S	210	420	105	468	563	2	468	188	120	22.9
M50M50	216	432	108	468	375	2	468	375	0	29.3
M50M25S	216	432	108	468	375	2	468	375	120	29.3
M90M25	220	440	110	104	563	2	831	188	0	35.9
M90M25S	220	440	110	104	563	2	831	188	120	35.9
M90M50	230	460	115	104	375	2	831	375	0	42.3
M90M50S	230	460	115	104	375	2	831	375	120	42.3

W: water, C: cement, FA: Fly Ash, G: gravel, S: sand, WRA: water reducing agent, MG: magnetite gravel, MS: magnetite sand, SP: steel powder, and : replacement ratio of volume.