Results 1 to 10 of about 174,423 (311)

Evolution law of microporous structure in cement asphalt (CA) mortar under the action of polyurethane polycarboxylates [PDF]

open access: yesScientific Reports
In this paper, Cement Asphalt (CA) mortar specimens mixed with polyurethane polycarboxylate and ordinary commercial polycarboxylate water-reducing agents have been prepared. The pore structure has been determined by scanning electron microscopy (SEM) and
Shuncheng Xiang   +9 more
doaj   +4 more sources

Influences of cement asphalt emulsified mortar construction on track slab geometry status [PDF]

open access: yesRailway Sciences, 2023
Purpose – The construction of cement asphalt (CA) emulsified mortar can obviously disturb the slab status after the fine adjustment. To decrease or eliminate the influence of CA mortar grouting on track slab geometry status, the effects of grouting ...
Tao Wang   +7 more
doaj   +1 more source

Petrographically quantifying the damage to field and lab-cast mortars subject to freeze-thaw cycles and deicer application

open access: yesJournal of Infrastructure Preservation and Resilience, 2021
Although calcium oxychloride (Ca-Oxy) is known to damage cementitious materials exposed to calcium chloride (CaCl2) deicers, there is little direct observation of Ca-Oxy in the field due to its instability.
Chunyu Qiao   +4 more
doaj   +1 more source

Experimental Investigation of Stochastic Mechanical Behavior of Cement Emulsified Asphalt Mortar under Monotonic Compression

open access: yesApplied Sciences, 2020
Experimental investigation on cement emulsified asphalt mortar (CA mortar) under uniaxial monotonic compression by taking into account the stochastic properties were investigated.
Xiao Li   +4 more
doaj   +1 more source

Effects of Sand Composition on the Mechanical Properties of CA mortar [PDF]

open access: yesAdvances in Engineering Research, 2015
In this paper, different rocks like marble, calcite, basalt, granite and quartz were used to produce the sand of CA mortar. Results showed that the type of sand had notable effects on the mechanical properties of CA mortar. For the calcium carbonate composition rocks like marble and calcite, when use the anion emulsified asphalt, the compressive ...
Kai Yang   +5 more
openaire   +1 more source

A Study on Ordinary Portland Cement Blended with Rice Husk Ash and Metakaolin [PDF]

open access: yes, 2020
. This paper tries to investigate the effect of replacing Ordinary Portland cement (OPC) with Metakaolin (MK) and Rice husk ash (RHA) on the physicomechanical properties such as consistency, setting times, soundness and mortar compressive strength of ...
Ayeni, Sholaremi   +4 more
core   +2 more sources

Research on the dynamic mechanical properties of cement emulsified asphalt mortar for high-speed railway: A review [PDF]

open access: yesAIP Advances
Cement emulsified asphalt mortar (CA mortar), as one of the key structural layers of slab ballastless track for high-speed railways, consists of cement, emulsified asphalt, sand, water, and appropriate additives, etc., which plays the roles of adjusting,
Hao Xu   +4 more
doaj   +1 more source

A novel treatment method for recycled aggregate and the mechanical properties of recycled aggregate concrete

open access: yesJournal of Materials Research and Technology, 2021
Establishing an effective method to enhance the adhesion of mortar on recycled concrete aggregate (RCA) is key to the utilization of RCA. In this paper, a novel and simple approach for strengthening the mortar layer of RCA by treatment with a ...
Xianfeng Wang   +4 more
doaj   +1 more source

Study on physical and mechanical properties of cement asphalt emulsified mortar under track slab [PDF]

open access: yesRailway Sciences
Purpose – During the construction process of the China Railway Track System (CRTS) I type filling layer, the nonwoven fabric bags have been used as grouting templates for cement asphalt (CA) emulsified mortar.
Tao Wang   +7 more
doaj   +1 more source

Portable and Raman imaging usefulness to detect decaying on mortars from Punta Begoña Galleries (Getxo, North of Spain) [PDF]

open access: yes, 2016
Punta Begoña Galleries were built in 1918 in Getxo (Basque Country, North of Spain) but were abandoned in 1960. Nowadays, their conservation state is very poor.
Arana Momoitio, Gorka   +6 more
core   +3 more sources

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