Results 21 to 30 of about 61,202 (318)

Structure, bonding and morphology of hydrothermally synthesised xonotlite [PDF]

, 2009
The authors have systematically investigated the role of synthesis conditions upon the structure and morphology of xonotlite. Starting with a mechanochemically prepared, semicrystalline phase with Ca/Si=1, the authors have prepared a series of xonotlite ...
A. Stumm, Black L., Black L., Black L., Black L., Chan C. F., Churakov S. V., Hejny C., K. Garbev, L. Black, Liebau F., Low N. M. P., Mamedov K. S., McWhinney H. G., Mekki A., Mollah M. Y. A., Qian G. R., Regourd M., Saito F., Thomassin J. H.   +19 more
core   +1 more source

Preparation of calcium silicate hydrate seeds by means of mechanochemical method and its effect on the early hydration of cement

Advances in Mechanical Engineering, 2019
Calcium silicate hydrate seeding is a promising accelerator for cement hydration. In this work, calcium silicate hydrate nanoparticles with various CaO/SiO 2 -ratios were prepared by means of mechanochemical approach.
Boyuan Wang, Wu Yao, Dietmar Stephan
doaj   +1 more source

A Review: Progress in Molecular Dynamics Simulation of Portland Cement (Geopolymer)—Based Composites and the Interface between These Matrices and Reinforced Material

Buildings, 2023
Molecular dynamics (MD) is an important method for studying the molecular and atomic scale of cement (geopolymer)-based composites which provides an effective method for the optimal design of cementitious materials.
Li Li, Yujie Wei, Qi Feng, Fang Liu, Bin Liu, Beichen Pu   +5 more
doaj   +1 more source

Structural models of random packing of spheres extended to bricks: Simulation of the nanoporous calcium silicate hydrates [PDF]

, 2009
Structure simulation algorithms of random packing of spheres and bricks have been developed. These algorithms were used to reproduce the nanostructure of the cementitious calcium silicate hydrates. The textural parameters (specific surface area, porosity,
Brunet, Fabrice, Morales Flórez, Víctor   +1 more
core   +3 more sources

Comparative evaluation of shear bond strength and microleakage of tricalcium silicate-based restorative material and radioopaque posterior glass ionomer restorative cement in primary and permanent teeth: An in vitro study

Journal of Indian Society of Pedodontics and Preventive Dentistry, 2014
Background: Restoration of carious primary molars is still a major concern while treating the young children that too in deep carious lesion which extends below the cemento-enamel junction (CEJ) where pulp protection and achieving adequate marginal seal ...
Vignesh Guptha Raju, Nilaya Reddy Venumbaka, Jayanthi Mungara, Poornima Vijayakumar, Sakthivel Rajendran, Arun Elangovan   +5 more
doaj   +1 more source

Preparation and Properties of Double Liquid Grouting Materials (DLGMs) Used for the Regenerated Roof of a Coal Mine

Buildings, 2023
Double liquid grouting materials (DLGMs) are composed of slurry A and slurry B. In response to the need for sustainable development, there is currently a focus on improving the utilization rate of resources. In this paper, industrial solid waste fly ash,
Aiguo Wang, Zheng Li, Peng Liu, Kaiwei Liu, Guofeng Yu, Qun Zheng, Yunchun Han, Haiyan Xu, Daosheng Sun   +8 more
doaj   +1 more source

Comparative Study of Soil Grouting with Cement Slurry and Cement-Sodium Silicate Slurry

Advances in Materials Science and Engineering, 2018
Cement slurry and cement-sodium silicate slurry are most widely applied for soil grouting reinforcement project. The viscosity change of cement slurry is negligible during grouting period and presumed to be time independent, while the viscosity of cement-
Mingting Zhu, Qingsong Zhang, Xiao Zhang, Bing Hui   +3 more
doaj   +1 more source

Rietveld Quantitative Phase Analysis of Oil Well Cement: in Situ Hydration Study at 150 Bars and 150 °C [PDF]

, 2019
Oil and gas well cements are multimineral materials that hydrate under high pressure and temperature. Their overall reactivity at early ages is studied by a number of techniques including through the use of the consistometer.
Cuesta-Garcia, Ana Maria, Fraga, Edmundo, García-Aranda, Miguel Ángel, Gomez-de-la-Torre, Maria de los Angeles, Yañez-Casal, Armando, Zea-Garcia, Jesus D.   +5 more
core   +6 more sources

Stabilization of Cr(III) wastes by C3S and C3S hydrated matrix : comparison of two incorporation methods [PDF]

, 2015
In the present study, the influence of Cr(III) on the properties of C3S and its stabilization in C3S hydrates was investigated by either direct incorporation as Cr2O3 during C3S preparation or introduced as nitrate salt during hydration.
De Schutter, Geert, Li, Xiangguo, Lyu, Yang, Ma, Baoguo   +3 more
core   +1 more source

On the formation of a waterproofing shell around the underground structure lining in watered ground [PDF]

E3S Web of Conferences, 2021
To prevent the filtration of groundwater into the used underground structure in operation through its lining, it is proposed to make two waterproofing shells by the underground method around the outer surface of the lining of an underground structure ...
Uglyanitsa Andrey
doaj   +1 more source