A simple test method to assess slump flow and stability of self-compacting concrete

다국어 초록 (Multilingual Abstract)

Establishment of test methods to assess the fresh properties of self-compacting concrete (SCC) are required to ensure the homogeneity in fresh and hardened states. This paper discusses the suitability of a simple test method for assessing the slump flow and stability of SCC by testing on self-compacting mortar (SCM) fraction. The proposed test method aims at investigating slump flow diameter test and sieve stability test of SCC by testing SCM fraction with a plunger penetration apparatus. A central composite modeling design was performed to evaluate the effects of water/cement ratio (W/C), superplasticizer dosage (SP) and powder marble content (MP) on slump flow diameter, stability and plunger penetration test of fresh SCC. The responses of the derived statistical models are slump flow (Sf), sieve stability (S) and plunger penetration (P). Relationships obtained in this study show acceptable correlations between plunger penetration test value and slump flow diameter test results and stability. It should note that the developed relationships are very useful to predict slump flow diameter and stability of studied SCC mixtures by carrying out a simple plunger penetration test on its mortar, which can save labour and time in laboratory experiments.

참고문헌 (Reference)

1 Khayat, K.H., "Utility of statistical models in proportioning self-consolidating concrete" 33 (33): 338-344, 2000

2 Shen, L., "Testing dynamic segregation of self-consolidating concrete" 75 : 465-471, 2015

3 Carro-Lopez, D., "Study of the rheology of self-compacting concrete with fine recycled concrete aggregates" 96 : 491-501, 2015

4 Bouziani, T., "Statistical modelling for effect of mix-parameters on properties of highflowing sand-concrete" 19 (19): 2966-2975, 2012

5 Okamura, H., "Self-compacting concrete" 1 (1): 5-15, 2003

6 AFGC, "Recommendations for Use of Self-Compacting Concrete, Scientific and Technical Documents" Association Francaise de Genie Civil 2008

7 Cussigh, F., "Project testing SCC-segregation test methods" 2003

8 "NF EN 413-2, Masonry Cement-Part 2: Test Methods"

9 De Schutter, G., "Guidelines for testing fresh selfcompacting concrete, Project Report from European Project Measurement of Properties of Fresh Self-CoMPacting Concrete" 2005

10 Sonebi, M., "Factorial design modelling of mix proportion parameters of underwater composite cement grouts" 31 (31): 1553-1560, 2001

11 Mesbah, H.A., "Electrical conductivity method to assess static stability of selfconsolidating concrete" 41 (41): 451-458, 2011

12 Ghoddousi, P., "Effects of particle packing density on the stability and rheology of selfconsolidating concrete containing mineral admixtures" 53 : 102-109, 2014

13 Perrot, A., "Effects of mix design parameters on consolidation behaviour of fresh cement-based materials" 50 (50): 117-, 2017

14 Esmaeilkhanian, B., "Effects of mix design parameters and rheological properties on dynamic stability of self-consolidating concrete" 54 : 21-28, 2014

15 Boukhelkhal, D., "Effect of mineral admixture type on stability and rheological properties of self-compacting concrete" 2015

16 Assaad, J.J., "Correlating thixotropy of self-consolidating concrete to stability, formwork pressure, and multilayer casting" 28 (28): 04016107-, 2016

17 Kordts, S., "Controlling the workability properties of self-compacting concrete used as ready-mixed concrete" 2003

18 Ouchi, M., "A simple evaluation method for interaction between coarse aggregate and mortar particles in self-compacting concrete" 1999

19 Shi, C., "A review on mixture design methods for self-compacting concrete" 84 : 387-398, 2015

20 Nunes, S., "A methodology to assess robustness of SCC mixtures" 36 (36): 2115-2122, 2006