Passing ability and segregation stability of self-consolidating concrete with different aggregate proportions

2006 ◽  
Vol 58 (7) ◽  
pp. 447-457 ◽  
Author(s):  
I. Y. T. Ng ◽  
H. H. C. Wong ◽  
A. K. H. Kwan
Keyword(s):  
Self Consolidating Concrete ◽  
Passing Ability ◽  
Segregation Stability

Correlations between Fresh Properties of Self-Consolidating Concrete Including Palm Oil Fuel Ash

2011 ◽  
Vol 250-253 ◽  
pp. 409-416 ◽  
Author(s):  
Md. Safiuddin ◽  
Md. Abdus Salam ◽  
Mohd Zamin Jumaat
Keyword(s):  
Palm Oil ◽  
Flow Time ◽  
Fresh Properties ◽  
Palm Oil Fuel Ash ◽  
Self Consolidating Concrete ◽  
Slump Flow ◽  
Filling Ability ◽  
Fuel Ash ◽  
Oil Fuel ◽  
Passing Ability

Palm oil fuel ash (POFA) has been used successfully as a supplementary cementing material in various types of concrete. In the present study, self-consolidating concrete (SCC) was produced by using POFA as a partial replacement of ordinary portland cement (OPC). In total, sixteen SCC mixes were prepared by varying water to binder (W/B) ratio, POFA content, and high-range water reducer (HRWR). POFA was used by replacing 0–30% of OPC by weight at the W/B ratios ranging from 0.25 to 0.40. The filling ability, passing ability and segregation resistance of various SCC mixes were investigated. The filling ability was determined with respect to slump flow, 50-cm slump flow time, inverted slump cone flow spread and time, and V-funnel flow time. The passing ability was examined with respect to J-ring flow. In addition, the segregation resistance was assessed with regard to sieve segregation index and column segregation factor. Based on the data obtained, the correlations for the fresh properties of SCC were sought. The experimental findings showed strong correlations between most of the fresh properties of SCC.

scholarly journals Rheological Properties Of Self-Consolidating Concrete Incorporating Natural And Industrial Pozzolans

2021 ◽  
Author(s):  
Asaad Mousa
Keyword(s):  
Rheological Properties ◽  
Yield Stress ◽  
Silica Fume ◽  
High Performance ◽  
High Performance Concrete ◽  
Cost Effective ◽  
Sustainable Construction ◽  
Self Consolidating Concrete ◽  
Supplementary Cementing Materials ◽  
Passing Ability

Self-consolidation concrete (SCC) is the latest version of high performance concrete with excellent workability and high resistance to segregation and bleeding. The main objective of this project is to study the rheological properties of SCC incorporating natural and industrial pozzolans (silica fume and metakaolin, repectively) as supplementary cementing materials (SCMs). Use of such pozzolanic materials in the development of environmentally friendly and cost effective SCC can lead to sustainable construction. In this project eleven SCC mixtures are developed by incorporating different percentages of silica fume (SF) and metakaolin (MK) as replacement of cement. However, the water cement ratio of all SCC mixtures are optimized so that all mixtures satisfied the requirements of SCC in terms of fresh properties such as workability, stability, passing ability, bleeding and segregation resistance. This study particularly concentrates on evaluation of the rheological properties such as viscosity and yield stress of developed silica fume and metakaolin based SCC mixtures. The influence of SF and MK dosages on viscosity and yield stress of SCC mixtures are evaluated. Correlations among fresh and rheological properties are developed and critically reviewed to make recommendations.

scholarly journals Rheological Properties Of Self-Consolidating Concrete Incorporating Natural And Industrial Pozzolans

2021 ◽  
Author(s):  
Asaad Mousa
Keyword(s):  
Rheological Properties ◽  
Yield Stress ◽  
Silica Fume ◽  
High Performance ◽  
High Performance Concrete ◽  
Cost Effective ◽  
Sustainable Construction ◽  
Self Consolidating Concrete ◽  
Supplementary Cementing Materials ◽  
Passing Ability

Self-consolidation concrete (SCC) is the latest version of high performance concrete with excellent workability and high resistance to segregation and bleeding. The main objective of this project is to study the rheological properties of SCC incorporating natural and industrial pozzolans (silica fume and metakaolin, repectively) as supplementary cementing materials (SCMs). Use of such pozzolanic materials in the development of environmentally friendly and cost effective SCC can lead to sustainable construction. In this project eleven SCC mixtures are developed by incorporating different percentages of silica fume (SF) and metakaolin (MK) as replacement of cement. However, the water cement ratio of all SCC mixtures are optimized so that all mixtures satisfied the requirements of SCC in terms of fresh properties such as workability, stability, passing ability, bleeding and segregation resistance. This study particularly concentrates on evaluation of the rheological properties such as viscosity and yield stress of developed silica fume and metakaolin based SCC mixtures. The influence of SF and MK dosages on viscosity and yield stress of SCC mixtures are evaluated. Correlations among fresh and rheological properties are developed and critically reviewed to make recommendations.

Passing Ability Tester for Self-Consolidating Concrete

2006 ◽  
Vol 3 (9) ◽  
pp. 100330
Author(s):  
SW Dean ◽  
HB Dhonde ◽  
YL Mo ◽  
TTC Hsu
Keyword(s):  
Self Consolidating Concrete ◽  
Passing Ability

Comparative study of plastic property test methods for self-consolidating concrete

2012 ◽  
Vol 39 (8) ◽  
pp. 937-950 ◽  
Author(s):  
B. Shindman ◽  
D.K. Panesar
Keyword(s):  
Stability Index ◽  
Field Testing ◽  
Plastic Property ◽  
Test Methods ◽  
Plastic Properties ◽  
Self Consolidating Concrete ◽  
Filling Ability ◽  
Acceptance Limits ◽  
Passing Ability ◽  
Direct Measures

Currently, there are a variety of test methods to evaluate the plastic properties of self-consolidating concrete (SCC) specified in provincial, national, and international guidelines. There is, however, a dearth of knowledge on how the results of the various test methods compare with each other. Some of the tests are direct measures, others are indirect; some of the tests are qualitative and others are quantitative; and some tests have specified acceptance limits while others do not. The purpose of this study, initiated by the Ontario Ministry of Transportation (MTO), is to compare the plastic properties (filling ability, passing ability, and segregation resistance) of SCC and identify any correlations between them to determine the most appropriate test methods for evaluating the plastic properties of SCC. The filling ability (slump flow, L-box (t20 and t40), and V-funnel), passing ability (J-ring and L-box blocking ratio), and segregation resistance (visual stability index, column method, V-funnel (t5-t0)) tests are conducted on eight SCC mix designs. The results are compared to the acceptance criteria specified by the MTO for SCC. Based on the results, and their relationships, the plastic property tests most suitable for laboratory, prequalification, and field-testing are recommended.

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