Results 11 to 20 of about 174,423 (311)

Early Hardening Process of CA Mortar Indicated by Electrical Resistivity [PDF]

open access: yes, 2020
A non-contact electrical resistivity measurement device was employed to indicate the early hardening process of cement asphalt emulsified mortar (CA mortar). It was found that this process was analogous with the hydration process of cement and could be categorized into three parts: dissolving period, induction period and setting period.
Wang, Tao   +8 more
openaire   +1 more source

Effect of calcium aluminate cement variety on the hydration of Portland cement in blended system [PDF]

open access: yes, 2014
Two kinds of CACs with different monocalcium aluminate (CA) contents were used in the PC/CAC (PAC) mixtures. Effects of CA and CACs on the properties of PAC were analyzed by setting times and the compressive strength tests, and also by means of ...
De Schutter, Geert   +3 more
core   +2 more sources

Preliminary Study on Assessing Delaminated Cracks in Cement Asphalt Mortar Layer of High-Speed Rail Track Using Traditional and Normalized Impact–Echo Methods

open access: yesSensors, 2020
The severe deterioration of a cement asphalt (CA) mortar layer may lead to the movement of the upper concrete slab and impair the safety of the speedy train.
Ying-Tzu Ke   +5 more
doaj   +1 more source

The Mechanical and Thermal Properties of Cement CAST Mortar/Graphene Oxide Composites Materials

open access: yesInternational Journal of Concrete Structures and Materials, 2022
This paper presents the influence of the graphene oxide (GO) sheet contents at conditions of 0, 0.01, 0.03, 0.05, and 0.1 wt% on the mechanical and thermal properties of GO/CAST 11 LW mortar (GMT) composites for heat insulating brick.
Thidatip Janjaroen   +6 more
doaj   +1 more source

Setting control of completely recyclable concrete with slag and aluminate cements [PDF]

open access: yes, 2016
A completely recyclable concrete (CRC) is designed to have a chemical composition equivalent to the one of general raw materials for cement production. By doing so, this CRC can be used at the end of its service life in cement manufacturing without the ...
De Belie, Nele   +3 more
core   +2 more sources

Comparative Research on Tensile Properties of Cement–Emulsified Asphalt–Standard Sand (CAS) Mortar and Cement–Emulsified Asphalt–Rubber Particle (CAR) Mortar [PDF]

open access: yesMaterials, 2020
The paper compared the tensile strength and elongation at break of cement–emulsified asphalt–standard sand (CAS) mortar and cement–emulsified asphalt–rubber particle (CAR) mortar. The tensile properties of CAS and CAR mortars were investigated. Microscopic analysis was carried out by Environmental Scanning Electron Microscopy and Energy Dispersive ...
Chaoyuan Li   +3 more
openaire   +2 more sources

Effect of Viscoelastic Deformation for CA Mortar on Mechanical Responses of Track Structures

open access: yesKSCE Journal of Civil Engineering, 2021
The viscoelastic deformation of cement emulsified asphalt mortar (CA mortar) can lead to gaps between the mortar and track slab, thereby adversely affecting the mechanical capability and deformation behavior of the track structures. According to the time hardening rate method, a solid model of the China Railway Track System I (CRTS-I) slab track was ...
Juanjuan Ren   +5 more
openaire   +1 more source

Experimental Research on Compression Properties of Cement Asphalt Mortar due to Drying and Wetting Cycle

open access: yesAdvances in Materials Science and Engineering, 2014
Uniaxial compression test of cement asphalt (CA) mortar specimens, due to drying and wetting cycle of 0, 2, 4 and 8 times, is carried out by using the electronic universal test machine, with the strain rate ranging from 1 × 10−5 s−1 to 1 × 10−2 s−1.
Ping Wang   +4 more
doaj   +1 more source

Capturing the oxidation of silicon carbide in rocky exoplanetary interiors [PDF]

open access: yes, 2018
Theoretical models predict the condensation of silicon carbide around host stars with C/O ratios higher than 0.65 (cf. C/O$_{\mathrm{Sun}}$ = 0.54), in addition to its observations in meteorites, interstellar medium and protoplanetary disks. Consequently,
Dominik, Carsten   +2 more
core   +3 more sources

Robust Discretization of Flow in Fractured Porous Media [PDF]

open access: yes, 2017
Flow in fractured porous media represents a challenge for discretization methods due to the disparate scales and complex geometry. Herein we propose a new discretization, based on the mixed finite element method and mortar methods.
Boon, Wietse M.   +2 more
core   +2 more sources

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