Introducing a New Quantitative Evaluation Method for Segregation of Normal Concrete

International Journal of Concrete Structures and Materials

Table 5 Slump and slump flow test results and EISN calculation data of high-strength concrete mixtures.

Mixture*		Slump (mm)	Slump flow (mm)			Segregation
S/a	W	Slump (mm)	Average	Max. (a)	Min. (b)	EISN (a/b)	Evaluation**
0.35	165	55	203	205	200	1.03	X
	175	105	210	215	205	1.05	X
	185	163	275	280	270	1.04	X
	195	195	283	285	280	1.02	X
	205	215	233	335	330	1.02	X
0.40	165	43	203	205	200	1.03	X
	175	80	205	210	200	1.05	X
	185	135	245	250	240	1.04	X
	195	175	268	270	265	1.02	X
	205	200	295	295	295	1.00	O
0.45	165	25	200	200	200	1.00	O
	175	55	205	205	205	1.00	O
	185	115	240	245	234	1.05	O
	195	160	253	260	245	1.06	O
	205	170	273	275	270	1.02	O
0.50	165	20	200	200	200	1.00	O
	175	40	203	205	200	1.03	O
	185	100	233	235	230	1.02	O
	195	135	243	245	240	1.02	O
	205	155	265	275	255	1.08	O
0.55	165	0	200	200	200	1.00	O
	175	35	203	205	200	1.03	O
	185	70	205	205	205	1.00	O
	195	90	215	220	210	1.05	O
	205	130	257	260	255	1.02	O

*S/a sand-to-aggregate ratio, W unit water content.
**Segregation of the concrete mixtures was evaluated by Maruya et al. suggested method (O: non-segregation; X: segregation).