Results 271 to 280 of about 174,423 (311)
Some of the next articles are maybe not open access.
Deterioration mechanism of CA mortar due to simulated acid rain
Construction and Building Materials, 2018Abstract In acid rain regions of Southwest China, cement-emulsified asphalt mortar (CA mortar), a key structure component in China Railway Track System (CRTS), is reported with more serious damaged signs than other locations. To investigate the effects of acid rain on its durability, the CA mortar specimens were immersed in acid solutions with pH ...
Xiaohui Zeng +5 more
openaire +1 more source
Conductivity behavior of the fresh CA mortar and its relationship with the fluidity properties
Construction and Building Materials, 2012Abstract In order to find a new test method to investigate the relationship between the compositions and fluidity of the cement and emulsified asphalt mortar (CA mortar), the conductivity and the fluidity properties of the fresh CA mortar with different mixtures were studied by analysis of the relationships among the liquid fraction, the “J” type ...
Xiaohui Zeng, Youjun Xie, Dehua Deng
openaire +1 more source
Study on SBS Modified Asphalt Emulsion and Aggregate Adhesion of CA Mortar
Advanced Materials Research, 2011The influence of pH of emulsified asphalt, the kinds and content of emulsifiers and stabilizers on asphalt-aggregate adhesion have been investigated in this paper. Results show that the pH of the emulsified asphalt has great impact on asphalt-aggregate adhesion by way of the effect of pH on asphalt, asphalt-aggregate adhesion is worst when asphalt ...
Bao Ju Liu +2 more
openaire +1 more source
Long-term forecast of Ca leaching from mortar and associated degeneration
Cement and Concrete Research, 2002The purpose of this study is the long-term forecast of Ca leaching from mortar and degeneration with Ca leaching. First, a technique for long-term forecasting of Ca leaching from mortar was constructed. Here, Ca is made to dissolve out by combining the electrochemical acceleration test with the diffusion test; it was converted on the basis of Ca ...
Ryu Jae-Suk +2 more
openaire +1 more source
Study on Effect of Aluminum Powder in CA (Cement Asphalt) Mortar
Applied Mechanics and Materials, 2014CA mortar is using the domestic with river sand as aggregate currently in China, we use sand to replace river sand as fine aggregate in CA mortar. The main purpose is test the influence of dosage on aluminum in the CA mortar. Experiments show that dosage should be the best aluminum from 0.01% to 0.015 %.
openaire +1 more source
Experimental study on the stability of asphalt emulsion for CA mortar by laser diffraction technique
Construction and Building Materials, 2012Abstract A laser diffraction particle size analyzer was employed to measure the particle size variations of two asphalt emulsions under stress conditions to evaluate their storage stability, freeze–thaw stability, and mechanical stability. Results showed that when the dosage of non-ionic emulsifier was increased from 0.4% to 0.8%, the particle size ...
Fazhou Wang +3 more
openaire +1 more source
Thermal analytical investigation of unaltered Ca(OH)2 in dated mortars and plasters
Thermochimica Acta, 1998Abstract The presence of unaltered relics of hydrates of calcium and magnesium in dated plasters and mortars are investigated by thermal analysis, X-ray powder diffraction, and by hydration of dated specimens after incremental heat treatment in a muffle furnace. The results are compared with the literature.
J. Adams, D. Dollimore, D.L. Griffiths
openaire +1 more source
Study on the Resistance to Water of CA Mortar Used in CRTSII Ballastless Slab Track
Applied Mechanics and Materials, 2014This paper studied mechanical properties and microscopic changes of CRTSⅡtype CA mortar under the roles of the conditions of water immersion, acid soaking, wet and dry cycling, etc. The results show that: under the role of water immersion, the relative compressive strength decreases and elastic modulus decreases firstly and then increases with the ...
Hong You Sun, Xu Feng Ma, Ping Wang
openaire +1 more source
Criteria for repairing damages of CA mortar for prefabricated framework-type slab track
Construction and Building Materials, 2016Abstract Damage of bagged cement–emulsified asphalt (CA) mortar tends to create voids underneath the track slab and will reduce the carrying capacity of the track structure, which is contrary to its design purpose of providing a long-term, safe and reliable service.
Juanjuan Ren +4 more
openaire +1 more source
Advanced Materials Research, 2011
Cement asphalt mortar (CA mortar) is a highly flowable grouting material used in the slab track structure. Temperature significantly influences the workable time of CA mortar. The workable time of CA mortar is controlled by the adsorption of asphalt droplets in the emulsion on cement grains.
Yun Peng Liu, Fa Zhou Wang
openaire +1 more source
Cement asphalt mortar (CA mortar) is a highly flowable grouting material used in the slab track structure. Temperature significantly influences the workable time of CA mortar. The workable time of CA mortar is controlled by the adsorption of asphalt droplets in the emulsion on cement grains.
Yun Peng Liu, Fa Zhou Wang
openaire +1 more source