Introducing a New Quantitative Evaluation Method for Segregation of Normal Concrete

International Journal of Concrete Structures and Materials

Table 4 Slump and slump flow test results and EISN calculation data of normal 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	35	208	210	205	1.02	O
	175	150	293	310	275	1.13	X
	185	185	335	360	310	1.16	X
	195	230	435	460	410	1.12	X
	205	275	550	580	520	1.12	X
0.40	165	20	205	205	205	1.00	O
	175	130	253	260	245	1.06	O
	185	205	373	390	355	1.10	X
	195	220	445	470	420	1.12	X
	205	270	540	570	510	1.12	X
0.45	165	30	208	210	205	1.02	O
	175	120	235	240	230	1.04	O
	185	195	333	345	320	1.08	O
	195	205	350	370	330	1.12	X
	205	235	433	455	410	1.11	X
0.50	165	45	213	215	210	1.02	O
	175	105	218	220	215	1.02	O
	185	175	323	330	315	1.05	O
	195	200	423	435	410	1.06	X
	205	225	430	450	410	1.10	X
0.55	165	10	203	205	200	1.03	O
	175	80	210	210	210	1.00	O
	185	160	308	315	300	1.05	O
	195	185	400	410	390	1.06	O
	205	210	415	425	405	1.05	O

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