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.


    Access

    Download


    Export, share and cite



    Title :

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




    Publication date :

    2020



    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    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 | DOAJ | 2020

    Free access

    Function Design of Cement Stabilized Crushed Stone Drainage Base

    Tian, L. / Xie, X. / Feng, D. | British Library Conference Proceedings | 2009


    Experimental Study on Mechanical Properties of Cement-Stabilized Soil Blended with Crushed Stone Waste

    Salehi, Mohsen / Bayat, Meysam / Saadat, Mohsen et al. | Springer Verlag | 2021



    Crushed stone and gravel roads

    McKesson, C.L. / Morris, A.F. | Engineering Index Backfile | 1921