... temperatures. The potential of waste-derived carbon black nanoparticles ( CBN ) to enhance the thermo-mechanical properties of cement mortar was explored in this work, addressing the dual challenges of sustainability and fire resistance. Mortars containing 0–3% CBN were compared with a control mix...

... green concrete low cement content mortar optimisation sustainability Three-dimensional (3D) concrete printing (3DCP) is a novel technology used to create objects with intricate geometry based on 3D model data. The process involves depositing successive layers of materials stacked on top...

...% and 15% by weight) of fine aggregates in mortar mixtures. The mortars incorporating the treated sludge exhibited superior mechanical strength and water resistance compared with those containing UTSS, with WTSS and RTSS showing the most notable improvements. This approach not only offers a cost...

...Ke-Yu Chen; Guang-Hua Lyu; Zi-Feng Wang; Yu-Qing Wang; Jin Xia The evolution of properties of a one-part fly ash-slag-based geopolymer mortar activated with sodium carbonate (Na₂CO₃, henceforth referred to as SC), sodium sulfate (Na₂SO₄ (SS...

...Suhang Yang; Gonglve Gao; Zhifeng Xu The compressive strength of in situ masonry mortar was evaluated using the hammer pendulum test method (HPTM). A portable HPTM apparatus, specifically designed for this purpose, was used to indirectly evaluate the compressive strength of mortar by inserting...

.... To explore the possibility of improving the performance of three-dimensionally printed (3DP) mortars by the combined addition of FAM and NS, a series of 3DP mortars with varying water/cementitious materials (w/cm) ratios, FAM contents and NS contents were made and their performance was evaluated. The results...

... properties between the SF and the concrete matrix. In this work, four types of SFs and five cement mortars with different strengths were used to investigate the bond behaviour of the SF–mortar interface after exposure to elevated temperature. The results showed that the compressive and flexural strengths...

... applications of DHM BFRP fibres. 16 07 2023 20 02 2024 Emerald Publishing Limited: All rights reserved 2023 double-helix fibre fibre alignments fibre-reinforced concrete fracture energy Karagozian & Case (K&C) concrete model macro BFRP fibre mortar Concrete...

... materials clays composite materials fibre-reinforced concrete fresh concrete mortar Certain failures can occur during the construction or operation of various structures due to human factors (e.g. design error, change of use, lack of maintenance) or natural factors (e.g. damage to materials...

...João Batista Pereira, MS; Geraldo de Freitas Maciel, PhD The aim of this work was to conduct a rheological assessment of mortars based on the automated slump test. Using this test to monitor the transient and permanent regime of slump and its spread, the parameters were correlated...

... of plastics destined for landfill and decrease the use of new natural resources. However, replacing sand with plastic tends to reduce the mechanical properties of mortars due to the different mechanical properties of natural aggregate and waste plastic and the poor interfacial compatibility between plastic...

...Il Sun Kim; So Yeong Choi; Eun Ik Yang The fundamental properties and durability of mortar mixed with phytoncide, zeolite or copper powder were evaluated. For different phytoncide substitution ratios (SRs), there was no significant difference in the flow, compressive strength and flexural strength...

...Hongyou Shan; Jinxia Xu; Yuanhai Jiang; Hongfei Liu; Gang Zheng; Guomin Cui An electrochemical method for improving the durability of cement mortar by injection of nanoparticles (alumina (Al₂O₃)-coated silica (SiO₂)) is presented. In this method, nanoparticles...

... microorganisms on the cracks to be repaired so that they can deposit calcium carbonate (CaCO₃) in situ to repair the cracks. The fundamental properties of the MRM were studied, along with the macroscopic morphology and surface water absorption of specimens before and after the repair of mortar cracks...

... foam index and Acid Blue 80 adsorption were less with wet storage. Mortar tests mainly gave increased air content at fixed AEA dose for material held under these conditions. The data suggest admixture accessibility to wet-stored fly ash particles influenced behaviour and this increased...

... with any other material particle x′ within its PD horizon δ (as shown in Figure 1). A pairwise force function f can be used to describe the interactions between x and x′. compressive strength cracks & cracking modelling mortar tensile properties...

... (VPV), water absorption (WA) and total charge passed) were studied. The effects of replacing river sand with different content of crushed WOS (0, 10, 20 and 30%) on flowability, mechanical properties and durability of mortar have been revealed. The results indicated that the addition of WOS had...

...Aliakbar Gholampour; Togay Ozbakkaloglu The aim of this study is to investigate the possibility of improving the mechanical properties of mortars produced with waste-based binder and sand by incorporating graphene oxide (GO) nanomaterial. Twenty-seven unique mortars were manufactured by replacing...

... the evaporation mass loss, and a lower development rate of capillary stresses and capillary pressure peak value induced by decreasing the surface tension of pore fluid are responsible for preventing the plastic shrinkage cracking of mortars containing SR-PCA. 13 06 2021 01 10 2021 ICE Publishing...

...Bilal Baz; Sébastien Remond; Georges Aouad Digital fabrication of concrete elements requires a better understanding of the rheological behaviour of the cementitious material used. Fresh concrete is known to be a thixotropic material having time-dependent characteristics. Moreover, fresh mortars...