Optimization and performance of air entrained self consolidating concrete

The water to cement (W/C) ratio and high-range water reducer (HRWR) dosage were kept the same for all concretes.The effects of RCA on the key fresh properties such as filling ability, passing ability, and segregation resistance of SCC were investigated.

In addition, strong correla-tions were observed for filling ability, passing ability, and segregation resistance. S., Properties of self-compacting concrete prepared with coarse recycled concrete aggregate (2010) Construction and Building Materials, 24 (7), pp. 5-15; Ozawa, K., Mackawa, K., Okamura, H., High performance concrete based on the durability design of concrete structures (1989) Proceedings of the Second East Asia Pacific Conference on Structural Engineering and Construction, pp. , Chiang-Mai, Thailand; Parez, N., Romero, H., Hermida, G., Cuellar, G., Self-compacting concrete, on the search and finding of an optimized design (2002) Proceedings of the First North American Conference on the Design and Use of Self-Consolidating Concrete, pp. , Hanley-Wood, LLC, Illinois, USA; Poon, C., Kou, S., Lam, L., Influence of recycled aggregate on slump and bleeding of fresh concrete (2007) Materials and Structures, 40 (9), pp.

The overall test results suggest that RCA can be used to produce SCC substituting up to 50 NCA without affecting the key fresh properties of concrete. 981-988; Recycled aggregate, , Portland Cement Association: Available from Concrete Technology, Available from Access in May 13, 2010; Sagoe-Crentsil, K. H., Performance of concrete made with commercially produced coarse recycled concrete aggregate (2001) Cement and Concrete Research, 31 (5), pp. L., Study on the engineering properties of recycled aggregate concrete and recovered aggregate from demolished concrete (2000) Journal of the Chinese Institute of Civil and Hydraulic Engineering, 12 (3), pp.

For concrete that requires air entrainment, the use of an ASTM C260 air-entraining agent (such as Daravair® or Darex® product lines) is recommended to provide suitable air void parameters for freeze-thaw resistance.

Please consult your GCP representative for guidance. Dosage rates can be adjusted to meet a wide spectrum of concrete performance requirements.

G., Performance and durability of concrete made with demolition waste and artificial fly ash-clay aggregates (1996) Waste Management, 16 (1-3), pp.

ADVA® 380 is a high efficiency polycarboxylate-based super-plasticizer intended for the production of Self-Consolidating Concrete (SCC) in ready-mix applications.In general, it is recommended that ADVA® 380 be added to the concrete mix near the end of the batch sequence for optimum performance.Different sequencing may be used if local testing shows better performance.Export Date: 6 January 2013 Source: Scopus Language of Original Document: English Correspondence Address: Safiuddin, M. 435-444; Tang, L., Evaluation of methods for testing fresh self-compacting concrete (2005) Proceedings of the First International Symposium on Design, pp. , Performance and Use of Self-Consolidating Concrete, Changsha, China; Tu, T.-Y., Chen, Y.-Y., Hwang, C.-L., Properties of HPC with recycled aggregates (2006) Cement and Concrete Research, 36 (5), pp.D.; Department of Civil and Environmental Engineering, Faculty of Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada References: (2009) Standard specification for concrete aggregates, , ASTM C 33 Annual Book of ASTM Standards, American Society for Testing and Materials, Philadelphia, USA; (2009) Standard test method for static segregation of self-consolidating concrete using column technique, , ASTM C 1610/C 1610M: Annual Book of ASTM Standards, American Society for Testing and Materials, Philadelphia, USA; (2009) Standard test method for slump flow of self-consolidating concrete, , ASTM C 1611/C 1611M: Annual Book of ASTM Standards, American Society for Testing and Materials, Philadelphia, USA; Brameshuber, W., Uebachs, S., Practical experience with the application of self-compacting concrete in Germany (2001) Proceedings of the Second International Symposium on Self-Compacting Concrete, pp. , COMS Engineering Corporation, Tokyo, Japan; (1975) Design of normal concrete mixes, , Do E: Department of Environment (Do E), The Building Research and Establishment (BRE) Publication, Watford, UK; (2002) Specifications and guidelines for self-consolidating concrete, , EFNARC: European Federation of Suppliers of Specialist Construction Chemicals (EFNARC), Surrey, UK; Felekoglu, B., Türkel, S., Baradan, B., Effect of water/cement ratio on the fresh and hard-ened properties of self-compacting concrete (2007) Building and Environment, 42 (4), pp. 943-950; Tu, T.-Y., Jann, Y.-Y., Hwang, C.-L., The application of recycled aggregates in SCC (2005) Proceedings of the First International Symposium on Design, pp. , Performance and Use of Self-Consolidating Concrete, Changsha, China; Zakaria, M., Cabrera, J.Addition rates for ADVA® 380 can vary with the type of application, but will normally range from 4 to 16 fl oz/100 lbs (260 to 1050 m L/100 kg) of cement.

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