Utilization of polysaccharides as viscosity modifying agent in self-compacting concrete

Physical-Mechanical Properties and Durability of Hydraulic Lime-Based Mortars With Non-Traditional Biopolymers

“…All of these biopolymers are currently used in food industry as gelling and thickening agents, and stabilisers [4][5][6]. The most well-known in the building industry are the XG and DG, which are partially in use in self consolidating concrete to reduce segregation and bleeding [4,5,7]. DG is more flexible in the use in comparison with XG for its properties are independent on mono-and bi-valent (e.g.…”

“…DG is more flexible in the use in comparison with XG for its properties are independent on mono-and bi-valent (e.g. Ca 2+ ) cations concentration as well as the temperature [7][8][9][10][11][12]. The cationic sensitivity lead to significantly different behaviour of these two biopolymers in lime mortars, where DG improved the strength characteristics and XG notably reduce them, especially the compressive one [13].…”

Degree of MWCNT suspension dispersity and its influence on rheology of cement pastes

“…Widespread application of mineral additives and chemical admixtures for generation of high workability and self-compacting concrete in construction practice requires the understanding of their action mechanism in cement systems (Bentz, Ferraris, Galler, Hansen, & Guynn, 2012;Štefančič, Mladenovič, Bellotto, Jereb, & Završnik, 2017;Vance, Kumar, Sant, & Neithalath, 2013;Zhang, Luo, Kong, Wang, & Gao, 2018;Qian et al, 2018;Smirnova, 2018aSmirnova, , 2018b. Development of self-compacting concrete (SCC) requires not only application of effective polymer plasticizers to reach high flowability, but also chemical admixtures to provide mixture stability (Isik & Ozkul, 2014). Nanoadditives with nanometer dimensions of particles, high aspect ratio and unique physical, chemical, electrical properties may be used as a perspective tool to improve the stability of concrete mixture.…”

CoRncrete: A corn starch based building material

“…The application of starch extends to the building and construction industry where it has been used as a binder in thermally insulating composites [5][6][7][8][9][10], an admixture for viscosity modification in concrete [11][12][13][14][15][16][17], a modifier in asphalt [18] and retarder in the cement hydration process [19]. In the investigation on thermally insulating composites, researchers utilised natural fibres, such as hemp [5][6][7], sisal [8] and jute [9], with starch acting as a binder and improving the mechanical performance.…”

“…Whereas composites manufactured by Gacoin et al [7], using hemp and wheat starch, had a maximum compressive strength of 2.1 MPa. Starch based Ether has been utilised by Isik and Ozkul [11] and Cappellari et al [12] in concrete and mortar respectively to improve the rheological property of the mix. Vieira et al [15] and Crépy et al [17] utilised modified starch as the dispersing agent in self-compacting concrete.…”