Influence of granulometry, cement content, and moisture in the mechanical performance of the cemented crushed stone

Kharine Prado, Fernando Silva Albuquerque, Guilherme Bravo de Oliveira Almeida

Resumo


The Cemented Crushed Stone (C2, as the South African Classification) was widely used on the main high-traffic Brazilian highways in the 1970s and 1980s. However, it presents several limitations for its use in the road work related to the properties of the material and its almost fragile nature, since as soon as the large variations in the tensile strain take place along the loading cycle, critical and accelerated degradation also occur, leading to material fatigue distress. Several factors stand out as probable causes for the intense and rapid process of fatigue, the main ones being: granulometry, cement content, and moisture content. In this way, a study was carried out to analyze the mechanical properties of C2 based on granulometry variation in relation to the cement and moisture content. It was noted that the mixture with the best joint performance was the one with the highest percentage of the sand fraction, highest cement content, and molded below the optimum moisture. Some recommendations were made for the mix design of C2, such as the definition of a granulometric range that considers the analysis of the aggregate large/small ratio in order to obtain a greater gain of maximum dry specific mass, as well as the use of cement contents above 4%, since below that the cementation will be insufficient. In addition, optimized ratios (aggregate + cement + water) should be defined by performing the mechanical analyzes listed in this paper, in order to select the best performance mixture to be applied in the road works.


Palavras-chave


Cemented Crushed Stone, Mix Design, Mechanical Performance Improvement.

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Referências


ABNT (2007) NBR 5739: Concrete - Compression tests and cylindrical specimens Concreto. Brazilian Association of Technical Standards, Rio de Janeiro. Available in Portuguese.

ABNT (2008a) NBR 8522: Concrete – Determination of the static modulus of elasticity to compression. Brazilian Association of Technical Standards, Rio de Janeiro. Available in Portuguese.

ABNT (2013a) NBR 12261: Dosage of graded stone treated with cement - Procedure. Association of Technical Standards, Rio de Janeiro. Available in Portuguese.

ABNT (2013b) NBR 11803: Materials for cement-treated graded stone base or sub-base - Requirements. Association of Technical Standards, Rio de Janeiro. Available in Portuguese.

Andrade, L. R.; A. K. Kuchiishi; I. S. Bessa; K. L. Vasconcelos; L. L. B. Bernucci; I. A. Beja; J. M. Chaves (2015) Mechanical behav-ior of granular base layers and treated with cement on a very heavy road. Annals of the XXIX Transport Research and Teaching Congress, ANPET, Ouro Preto, p.148-149. Available in Portuguese.

ASTM (2014) A Standard Test Method for Fundamental Transverse, Longitudinal, and Torsional Frequencies of Concrete Speci-mens da American Society for Testing and Materials, ASTM C 215-14. 7p. DOI 10.1520/C0215-14.

AUSTROADS (2008) Technical Report. The development and evaluation of protocols for the laboratory characterization of cement-ed materials. AUSTROADS.

AUSTROADS (2014) Cemented Materials Characterisation, Sidney.

Balbo, J. T. (1993) Study of the mechanical properties of stone and cement mixtures and their application to semi-rigid pavements. Thesis (PhD in Engineering). Department of Transportation Engineering, Polytechnic School, University of São Paulo, São Paulo. Available in Portuguese.

Balbo, J. T. (1997) High quality cement treated crushed stones for concrete pavement bases. International Purdue Conference on Concrete Pavement Design and Materials for High Performance, 6th, Indiana, USA, p.195-207.

Balbo, J. T. (2002) Paving - Materials, Properties and Construction Techniques. Publishing company USP, São Paulo. Available in Portuguese.

Balbo, J. T. (2006) Cemented crushed stone: an assessment of its durability from the perspective of porosity, toughness and fracture. Transportation, volume XIV, number 1, p.45-53. ISSN: 1415-7713. DOI: 10.14295/transportes. V14i1.59. Available in Portuguese.

Bernucci, L. L. B;, L. M. G, Motta; J. B. Soares; J. A. P. Ceratti (2006) Asphalt paving: basic training for engineers. 1rd Edition. PE-TROBRAS. ABEDA, Rio de Janeiro. Available in Portuguese.

Chen, D.; T. Scullion; T. Lee; J. Bilyeu (2008) Results from a Forensic Investigation of a Failed Cement Treated Base. Journal of Performance of Constructed Facilities, American Society of Civil Engineers (ASCE), 22(3), p. 143–153. DOI: 10.1061/(ASCE)0887-3828(2008)22:3(143).

DER/PR (2005) ESP-P16: Pavin: graduated cemented crushed stone. Paraná State Department of Highways, Paraná. Available in Portuguese.

DER/SP (2005) ET-DE-P00/009 - Technical specification: sub-base or base of cemented crushed stone. Department of Highways of the State of São Paulo, São Paulo. Available in Portuguese.

DNIT (1994) DNER-ME 162: Soils - Compaction test using worked samples. National Department of Land Infrastructure. Rio de Janeiro. Available in Portuguese.

DNIT (2010) DNER-ME 136: Asphalt paving - Asphalt mixtures - Determination of traction by diametrical compression. National Department of Land Infrastructure. Rio de Janeiro. Available in Portuguese.

Haier, J. F.; R. E. Anderson; R. L. Tathan; W.O. Black (2005) Multivariate Data Analysis. Translated by Adonai Schlup Sant’ana e Anselmo Chaves Neto – 5rd ed., Publishing company Bookman, Porto Alegre, RS.

Klinsky, L. M. G.; V. C. Faria (2015) Effects of the variation of humidity and compaction energy on the parameters of Cemented Crushed Stone.

Proceedings of the 45th Annual Paving Meeting and the 19th National Road Conservation Meeting, ENACOR, Brasília, DF. Available in Portuguese.

LCPC (2003) Pavement structures catalog. Technical guide for the use of Ile-de-France regional materials.

Lim S.; D. G. Zollinger (2003) Estimation of the compressive strength and modulus of elasticity of cement-treated aggregate base materials. Transportation Research Board 1837, Washington, p 30-38. DOI: 10.341/1837-04.

Main Roads Western Australia (2011) Specifications 501: pavements. Document No. 04/10110-04. Main Roads Western Austral-ia, Perth.

Marodin, E. E. (2010) Sizing alternative for the BR-448 pavement: mechanistic analysis with the application of cemented crushed stone. Thesis (Doctorate) - Federal University of Rio Grande do Sul, Porto Alegre. Available in Portuguese.

Medina, J.; L. M. G. Motta (2015) Paving mechanics. Publishing company INTERCIÊNCIA, 3rd Edition, Rio de Janeiro. Available in Portuguese.

Mendonça, A. T.; F. S. Albuquerque (2017) Critical analysis and adjustment of fatigue prediction models with incremental damage analysis for BGTC performed on semi-rigid asphalt pavement. Transport Magazine. p. 107-123. DOI: 10.14295/transport. v 25i2.1046. Available in Portuguese.

Montgomery, Douglas C.; Runger, George C. (2014) Applied Statistics and Probability for Engineers. John Wiley & Sons, Sixth Edition, United States of America.

Motta, L. M. G.; M. O. Ubaldo (2015) Discussion on Values of Resilience Module of Cemented Crushed Stone (BGTC). 43rd Annual Paving Meeting, 17th National Road Conservation Meeting, ENACOR, Maceió. Available in Portuguese.

Nascimento. S. R.; F. S. Albuquerque (2018) Cement-based fatigue performance study. Transport Magazine. p. 21-36. DOI: 10.14295/transport v26i1.1358. Available in Portuguese.

NCHRP (2014) Characterization of Cementitiously Stabilized Layers for Use in Pavement Design and Analysis. National Coopera-tive Highway Research Program. Report 789. Washington, D.C. 82p. 2014.

SAPEM (2014) South African Pavement Engineering Manual. South African National Roads Agency Ltd.

Silva A. H. M.; J. M. Chaves; L. A. Aranha; L. L. B. Bernucci; K. L. Vasconcelos (2013) Evaluation of executive parameters for the construction of a thick layer of cemented base. Brazilian Congress of Highways & Concessions,8, São Paulo. Available in Portuguese.

U. S. (2013) Standards for Specifying Construction of Airports. Department of Transportation. (2013-DRAFT). Advisory Circu-lar. AC No. 150/5370-10G.

Xuan D. X.; L. J. M. Houben; A. A. A. Molenaar; Z. H. Shui (2012) Mechanical Properties of Cement-Treated Aggregate Material – A Review Materials and Design, 33, p.496-502. DOI: 10.1016/j.matdes 2011.04.55.

Yeo, Y. S. (2011) Characterization of cement-treated crushed rock base course for Western Australian Roads. Thesis (Doctor of Philosophy). Curtin University. Bentley, Australian.

Yeo. Y. S.; P. Jitsangiam; H. Nikraz (2011) Mix design of cementitious basecourse. International Conference on Advances in Ge-otechnical Engineering (ICAGE 2011), Perth, Austrália, p.379-385.




DOI: https://doi.org/10.14295/transportes.v28i1.1861

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Direitos autorais 2020 Kharine Prado, Fernando Silva Albuquerque, Guilherme Bravo de Oliveira Almeida

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TRANSPORTES (ISSN: 2237-1346) é uma publicação da ANPET - Associação Nacional de Pesquisa e Ensino em Transportes (www.anpet.org.br)

 

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