Influences of SAP on hydration heat and autogenous shrinkage were studied by utilizing TAM AIR technology and a non-contact autogenous shrinkage test method. Scanning Electron Microscope (SEM) was employed to assess the microstructure evolution. ... International RILEM Conference on Volume Changes of Hardening Concrete: …
DOI: 10.1016/J.CONBUILDMAT.2016.09.123 Corpus ID: 137940060; Effect of supplementary cementitious materials on autogenous shrinkage of ultra-high performance concrete @article{Ghafari2016EffectOS, title={Effect of supplementary cementitious materials on autogenous shrinkage of ultra-high performance concrete}, …
Cement pastes and concretes with low water/binder ratios were cured internally by the incorporation of super-absorbent polymer (SAP) particles. Reduction in autogenous shrinkage by the internal curing was investigated in relation with characteristics of coarse capillary pore structure and volume fractions of constituent phases in cement paste …
Proceedings of an International Conference on Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Roll Technology held September 25 – 28, 2011in Vancouver, B.C., Canada. This conference is made possible by the support from the Norman B. Keevil Institute of Mining Engineering of the University of
Conference: 10th International Mineral Processing Conference - Procemin 2013; ... (Eds.), Proceed ings of the International Autogenous Grinding Semi-autogenous . Grinding and High Pressure ...
Conference: International RILEM Conference on the Application of Superabsorbent Polymers and Other New Admixtures in Concrete Construction ... autogenous shrinkage the addition of dry SAP to ...
Conference: The 6th International Conference on Semi-Autogenous and High Pressure Grinding Technology; At: Vancouver, Canada
The results of the autogenous volume deformation values of concrete compounded with MgO and polypropylene fibres were calculated according to the formula (1–2) for autogenous volume deformation of concrete in the specification "Test Procedure for Hydraulic Concrete (SL352-2006)" (the results are accurate to 1 × 10 –6), with the ...
1. Introduction. When fresh mortar is subjected to drying, contraction may take place. This plastic shrinkage may cause cracking during the first few hours after casting [1].Other forms of shrinkage include autogenous shrinkage as a result of cement hydration, thermally-induced shrinkage and drying shrinkage due to the loss of water to …
By stimulating autogenous healing by means of superabsorbent polymers, cracks are closed and this will cause an increase in durability and service life. ... In 3rd International Conference on ...
Autogenous Shrinkage, Microstructure, and Strength of Ultra-High Performance Concrete Incorporating Carbon Nanofibers. ... Proceedings of the International Conference on Recent Advances in Concrete Technology; Washington, DC, USA. 19–21 September 2007; pp. 131–140.
A recent advance in construction technology is the use of self-healing cementitious materials containing synthetic microfibers and superabsorbent polymers. …
Proceedings of an International Conference on Autogenous Grinding, Semiautogenous Grinding and High Pressure Grinding Roll Technology held September 25 – 28, 2011in …
Proceedings of the 2006 International Conference on Autogenous and Semi-Autogenous Grinding Technology, Vancouver, Canada, vol. 4 (2006), pp. 172-189. Google Scholar. Pincock et al., 2011. Allen Pincock, Holt Consultants. Technical Report for the Sierra Gorda Project.
SAG mill liner development draws primarily on practical experience from SAG milling operations supported by computer-based modeling of charge motion in SAG mills and on established good design practice. Liner design needs to respond to the process aspects of mill liner action that are critical to good SAG mill performance, i.e., the impact …
International RILEM Conference on Early-Age and Long-Term Cracking in RC Structures. Conference paper. Autogenous Healing of High Performance Concrete Using Metakaolin. ... Autogenous healing can be accelerated by the addition of mineral additives. The mineral additive used for autogenous healing is metakaolin. The use of …
The influence of slurry transport on the power draw of autogenous and semi-autogenous mills. In: Proceedings of 2nd International Conference on Autogenous …
Prediction of the autogenous shrinkage referred to as the reduction of apparent volume of concrete under seal and isothermal conditions is of great significance in the service life analysis and design of durable concrete structures, especially with the increasing use of concrete with low water-to-cement ratios.
Autogenous healing is an already-present feature in cementitious materials, but it is an inferior mechanism as it can only heal cracks up to 50 µm in the presence of water. ... XIII International ...
Conference: SAG2001 - International Conference on Autogenous and Semiautogenous Grinding Technology; At: Vancouver, Canada; Authors: ... grinding circuit since the 1996 SAG conference.
Hammer, T.A., 'Test Methods for Linear Measurement of Autogenous Shrinkage before Setting', in: Autoshrink'98 -Proc. Int. Workshop on Autogenous Shrinkage of Concrete, June 1998, E. Tazawa ed ...
The mounted semi autogenous (SAG) mill in the processing unit of the Midouk copper mine which consumes 35% of operational costs has a critical size within the range of 2.5–5 cm.
Conference: SAG2006 - International Conference on Autogenous and Semiautogenous Grinding Technology; At: …
S. Igarashi, A. Watanabe, Experimental study on prevention of autogenous deformation by internal curing using super-absorbent polymer particles, in: O.M. Jensen, P. Lura, K. Kovler, (Eds.), Proceedings of International RILEM Conference on Volume Changes of Hardening Concrete: Testing and Mitigation, 20–23 August 2006, pp. 77–86.
Physics-based Data-Augmented Deep Learning for Enhanced Autogenous Shrinkage Prediction on Experimental Dataset Vishu Gupta, Yuhui Lyu, Derick Suarez, Yuwei Mao, Wei Keng Liao, Alok Choudhary, Wing Kam Liu, Gianluca Cusatis, Ankit Agrawal
Fig. 1 presents the testing equipment developed for monitoring free autogenous deformation directly after casting. Concrete was cast in a cylindrical Teflon mould (Ø = 96 mm and h = 210 mm) which allows minimizing the friction between the sample and the mould walls.Since the thermal expansion coefficient of Teflon (80 × 10 …
International RILEM Conference on Volume Changes of Hardening Concrete: Testing and Mitigation 20-23 August 2006, Technical University of Denmark, Lyngby, Denmark ... autogenous shrinkage to minimize the crack tendency of the young concrete. A new method using superabsorbent polymer (SAP) particles as concrete admixture was ...
Chini A.R., Villavicencio E.J. Detection of microcracks in concrete cured at elevated temperature; Proceedings of the International Conference on Recent …
Chemical shrinkage (CS) is an intrinsic parameter that may affect the early age cracking of paste, mortar and concrete. It is well known as the driving force of self-desiccation, autogenous shrinkage (AGS) and drying shrinkage. During the first stage of cement hydration (at the initial setting time), the CS and AGS are equal. In the hardened …
The influence of slurry transport on the power draw of autogenous and semi-autogenous mills. In: Proceedings of 2nd International Conference on Autogenous and Semi-autogenous Grinding Technology, Vancouver, Canada, pp. 378–389. Google Scholar. Morrell and Morrison, 1996. Morrell, S., Morrison, R.D., 1996. AG and SAG mill …
Conference: 2nd International RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures - EAC2; At: Brussels, Belgium
In: International RILEM Conference on Application of Superabsorbent Polymers and Other New Admixtures in Concrete Construction, Dresden, pp. 211–219 (2014) Google Scholar Tazawa, E.: Technical committee on autogenous shrinkage of concrete – committee report.
Conference: The 6th International Conference on Semi-Autogenous and High Pressure Grinding Technology; At: Vancouver, Canada
The mechanism of autogenous shrinkage is explored by thermal analysis and pore structure analysis techniques. The results show that autogenous shrinkage of UHPCC increases with the decreasing of water-binder ratio. The autogenous shrinkage of 60d increases by 14.4% and 25.4%, when water-binder ratio decreases from 0.24 to …
