Effectiveness of wax/water emulsions (w/w) of curing compounds for mortar
Palabras clave:
Curing compounds for concrete, Waxes, Environmental factor, Total Dissolve Solids, Multivariate analysis, Environmental variablesResumen
Twenty-nine emulsions were proved experimentally to implement them as a form of treatment for Water Retention efficiency (WR) and prevention of rapid evaporation of free water on concrete. All emulsions were evaluated in two different concentrations of Total Dissolve Solids (TDS) (at lower level 10 %-15 % w/w and at higher level 27 %-30 % w/w). At higher TDS, cationic emulsion B2 showed the best percentage of WR 91 % (IC 95 %97.5% - 99.99%). There were others emulsions that present a significant response of WR (emulsions G non-ionic, F non-ionic and G2 cationic). At lower level of TDS, emulsion D has showed to be the best with 74 % of WR, therefore emulsions A1, A3, B, C, E had very good water retention with 95 % CI ranged from 52 % to 74 %. All emulsions evaluated at lower TDS showed worst WR than emulsion evaluated at higher TDS (B2, G, F and G2). In a multivariate analysis, environmental variables like relative moisture (RLV), Temperature and Water Adding (Water.gr) have not affected. However, interaction of high levels of RLV and lower levels of temperature showed a positive correlation with retention water in emulsions G2 and D after 72 hours of drying. In conclusions cationic emulsions G, F, G2 and B2 evaluated at higher level of TDS were better than those evaluated at lower level of TDS. To implement curing compound for concrete is not recommended to use curing compounds at lower levels of TDS.Descargas
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Arya, Chanakya. 2018. Design of Structural Elements: Concrete, Steelwork, Masonry and Timber Designs to British Standards and Eurocodes. CRC Press.
Behiry, Ahmed Ebrahim Abu El-Maaty. 2012. “Fatigue and Rutting Lives in Flexible Pavement.” Ain Shams Engineering Journal 3(4):367–74.
Brewer, Dominic J., Cathy Krop, Brian P. Gill, and Robert Reichardt. 1999. “Estimating the Cost of National Class Size Reductions under Different Policy Alternatives.” Educational Evaluation and Policy Analysis 21(2):179–92.
Buyle-Bodin, François, and R. Hadjieva-Zaharieva. 2002. “Influence of Industrially Produced Recycled Aggregates on Flow Properties of Concrete.” Materials and Structures 35(8):504–9.
Chyliński, Filip, Agnieszka Michalik, and Mateusz Kozicki. 2022. “Effectiveness of Curing Compounds for Concrete.” Materials 15(7):2699.
Core Team, R. 2014. “R: A Language and Environment for Statistical Computing.”
Cramer, Steven M., and Marc Anderson. 2012. Laboratory Study of High Performance Curing Compounds for Concrete Pavements: Phase I. Wisconsin. Dept. of Transportation.
De’ath, Glenn, and Katharina E. Fabricius. 2000. “Classification and Regression Trees: A Powerful yet Simple Technique for Ecological Data Analysis.” Ecology 81(11):3178–92.
Ford, ED. 2005. “A Primer of Ecological Statistics.” The American Statistician.
Gardner, N. J. 2005. “Punching Shear Strength of Post-Tensioned Concrete Flat Plates.” Special Publication 232:193–208.
Goel, Ajay, Jyoti Narwal, Vivek Verma, Devender Sharma, and Bhupinder Singh. 2013. “A Comparative Study on the Effect of Curing on the Strength of Concrete.” International Journal of Engineering and Advanced Technology (IJEAT) 2(6):401–6.
González, Cástor Guisande, and Antonio Vaamonde Lise. 2013. Gráficos Estadísticos y Mapas Con R. Ediciones Díaz de Santos.
Jensen, Ole Mejlhede, and Per Freiesleben Hansen. 2001. “Water-Entrained Cement-Based Materials: I. Principles and Theoretical Background.” Cement and Concrete Research 31(4):647–54.
Kringos, Nicole, and A. Scarpas. 2008. “Physical and Mechanical Moisture Susceptibility of Asphaltic Mixtures.” International Journal of Solids and Structures 45(9):2671–85.
Meeks, Kenneth W., and Nicholas J. Carino. 1999. Curing of High-Performance Concrete: Report of the State-of-the-Art. US Department of Commerce, Technology Administration, National Institute of ….
Mindess, Sidney, J. Francis Young, and David Darwin. 1981. “Concrete Prentice-Hall.” Englewood Cliffs, NJ 481.
Montgomery, D. C. 2012. Design and Analysis of Experiments, 8th Edition. John Wiley & Sons, Incorporated.
Nahata, Yash, Nirav Kholia, and T. G. Tank. 2014. “Effect of Curing Methods on Efficiency of Curing of Cement Mortar.” APCBEE Procedia 9:222–29.
Özen, Halit. 2011. “Rutting Evaluation of Hydrated Lime and SBS Modified Asphalt Mixtures for Laboratory and Field Compacted Samples.” Construction and Building Materials 25(2):756–65.
Shetty, M. S., and A. K. Jain. 2019. Concrete Technology (Theory and Practice), 8e. S. Chand Publishing.
Treybal, Robert Ewald, and E. Treybal Robert. 1968. Mass-Transfer Operations. Vol. 3. McGraw-Hill New York.
Wang, Xiangen, Halwan Alfisa Saifullah, Hiroki Nishikawa, and Kenichiro Nakarai. 2020. “Effect of Water–Cement Ratio, Aggregate Type, and Curing Temperature on the Fracture Energy of Concrete.” Construction and Building Materials 259:119646.
