Page 17

2015SpringShotcreteEMag

Table 1: Freezing-and-thawing test (ASTM C666) Table 2: Air void system characteristics measured on CSA-AEA results obtained after 300 cycles shotcrete mixture Durability factor Air void system—ASTM C457, Procedure B Mixture (ASTM C666) Mixture Hardened air content Spacing factor CSA-AEA 100% CSA-AEA 5.8% 214 μm CSA-Polymer A 100% CSA-Polymer B 97% References Support in Challenging Mining Conditions,” Deep Mining ACI Committee 506, 2005, “Guide to Shotcrete (ACI 506R- 2014: 7th International Conference on Deep and High Stress 05),” American Concrete Institute, Farmington Hills, MI, 40 pp. Mining, M. Hudyma and Y. Potvin, eds., Australian Centre ASTM C116-90, 1990, “Test Method for Compressive for Geomechanics, Nedlands, Australia, pp. 271-279. Strength of Concrete Using Portions of Beams Broken in Pelletier, L.; Winnefeld, F.; and Lothenbach, B., 2010, Flexure (Withdrawn 1999),” ASTM International, West “The Ternary System Portland Cement-Calcium Sulpho - Conshohocken, PA. aluminate Clinker-Anhydrite: Hydration Mechanism and ASTM C457/C457M-12, 2012, “Standard Test Method Mortar Properties,” Cement and Concrete Composites, V. 32, for Microscopical Determination of Parameters of the Air-Void No. 7, pp. 497-507. System in Hardened Concrete,” ASTM International, West Reny, S., and Clements, W., 2013, “Reaching 20 MPa Conshohocken, PA, 15 pp. (2900 psi) in 2 Hours is Possible,” Shotcrete, V. 15, No. 4, ASTM C642-13, 2013, “Standard Test Method for Density, Fall, pp. 26-30. Absorption and Voids in Hardened Concrete,” ASTM Reny, S., and Ginouse, N., 2014, “Development of a Rapid International, West Conshohocken, PA, 3 pp. Strength Gain Dry-Mix Shotcrete using Calcium Sulfo- ASTM C666/C666M-03(2008), 2008, “Standard Test Aluminate Cement for Mining and Tunnelling Applications,” Method of Resistance of Concrete to Rapid Freezing and Deep Mining 2014: 7th International Conference on Deep Thawing,” ASTM International, West Conshohocken, PA, 6 pp. and High Stress Mining, M. Hudyma and Y. Potvin, eds., ASTM C1117-89(1994), 1994, “Standard Test Method for Australian Centre for Geomechanics, Nedlands, Australia, Time of Setting of Shotcrete Mixtures by Penetration pp. 281-290. Resistance (Withdrawn 2003),” ASTM International, West Conshohocken, PA, 3 pp. ASTM C1202-12, 2012, “Standard Test Method for Electrical Indication of Concrete’s Ability to Resist Chloride Nicolas Ginouse is Research Ion Penetration,” ASTM International, West Conshohocken, and Development Leader for PA, 7 pp. ASA Corporate Member King ASTM C1604/C1604M-05(2012), 2012, “Standard Test Packaged Materials Company Method for Obtaining and Testing Drilled Cores of Shotcrete,” and Associate Professor at ASTM International, West Conshohocken, PA, 5 pp. Austin, S., and Robins, P., 1995, Sprayed Concrete: Laval University, Québec, QC, Properties, Design and Application, Whittles Publishing, Canada. His research interests Dunbeath, UK, 382 pp. include all the aspects involved Barde, A.; Parameswaran, S.; Chariton, T.; Weiss, J.; in shotcrete technology whereas his expertise con- Cohen, M. D.; and Newbolds, S., 2006, “Evaluation of Rapid tributes to the development of new cementitious Setting Cement-Based for Patching and Repairs,” FHWA/IN/ JTRP-2006/11, Purdue University/Indiana Department of materials for mining, tunneling, and repair applica- Transportation, West Lafayette, IN, 154 pp. tions. Ginouse received his degree in mechanical Bernardo, G.; Telesca, A.; and Valenti, G.L., 2006, “A and industrial engineering from Art et Métiers Porosimetric Study of Calcium Sulfoaluminate Cement Pastes Paritech, Paris, France, in 2010 and his PhD in Cured at Early Ages,” Cement and Concrete Research, V. 36, civil engineering from Laval University in 2014. He No. 6, pp. 1042-1047. Bolduc, L.-S., 2009, “Études des Propriétés de Transport is a member of ACI Committees 506, Shotcreting, du Béton Projeté,” master’s thesis, Université Laval, Québec and ITG-10, Alternative Cementitious Materials. City, QC, Canada, 168 pp. Bolduc, L.-S., and Jolin, M., 2010, “Shotcrete Boiled William Clements is a Technical Water Absorption,” Shotcrete, V. 12, No. 1, Winter, pp. 12-17. Services Engineer for King Pack- Garcia, A.M., 2014, “Durability Testing of Rapid, Cement- Based Repair Materials for Transportation Structures,” aged Materials Company. His master’s thesis, the University of Texas at Austin, Austin, TX, areas of focus include cementi- 167 pp. tious material mixture design Heere, R., and Morgan, D., 2002, “Determination of Early- development, structural rehabili- Age Compressive Strength of Shotcrete,” Shotcrete, V. 4, tation, and shotcrete technology. No. 2, Spring, pp. 28-31. Juenger, M.; Winnefeld, F.; Provis, F.; and Ideker, J., 2011, He received his bachelor’s and “Advances in Alternative Cementitious Binders,” Cement and master’s degrees in civil engineering from the Uni- Concrete Research, V. 41, No. 12, pp. 1232-1243. versity of Windsor, Windsor, ON, Canada. He is Lemay, J.-D., 2013, “Développement de Béton Projeté à currently a practicing civil engineer in Ontario, Ultra Haute Résistance Initiale,” master’s thesis, Université Canada, and a member of the American Concrete Laval, Québec City, QC, Canada, 127 pp. Lemay, J.-D.; Jolin, M.; and Gagné, R., 2014, “Ultra Rapid Institute (ACI) and Building and Concrete Restora- Strength Development in Dry-Mix Shotcrete for Ultra Rapid tion Association of Ontario (B&CRAO). Shotcrete • Spring 2015 15


2015SpringShotcreteEMag
To see the actual publication please follow the link above