The application of a combination of treated AMPS/IA copolymer and borax as the retarder of calcium aluminate phosphate cement
Sign Up to like & getrecommendations! Published in 2017 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2017.03.071
Abstract: Abstract The research objectives in this paper are designed to develop one new type of retarder for calcium aluminate phosphate cement (CAPC) to extend the thickening time. Results show that due to the influence of… read more here.
Keywords: retarder calcium; retarder; amps copolymer; treated amps ... See more keywords
Development of a concrete set retarder utilizing electric arc furnace dust
Sign Up to like & getrecommendations! Published in 2020 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2020.119378
Abstract: Abstract Retarding admixtures are used to increase the setting time of concrete, especially under hot weather conditions. They provide longer time for concrete to be transported, placed and consolidated. Several commercial retarders are used to… read more here.
Keywords: set retarder; time; time concrete; setting time ... See more keywords
Synthesis and retarder mechanism study of a novel amphoteric composite high temperature-resistant retarder for oil well cement
Sign Up to like & getrecommendations! Published in 2018 at "RSC Advances"
DOI: 10.1039/c8ra01139g
Abstract: An amphoteric composite polymer (hereinafter referred to as PAADM) as a high temperature-resistant cement retarder was prepared by in situ intercalated polymerization method with 2-crylamido-2-methylpropanesulfonic acid (AMPS), acrylic acid (AA) and two diallyl dimethyl ammonium… read more here.
Keywords: temperature; high temperature; cement; amphoteric composite ... See more keywords
The effect of hydrophobic chains on retarding performance of retarding acids
Sign Up to like & getrecommendations! Published in 2022 at "RSC Advances"
DOI: 10.1039/d2ra00552b
Abstract: Acidizing retarders are used to reduce the reaction rate between hydrochloric acid (HCl) and carbonates to increase the efficiency of acidification of oil and gas wells and increase oil and gas recovery. We synthesized two… read more here.
Keywords: retarding performance; apeg 1000; hydrophobic chains; retarder ... See more keywords
Research on Temperature and Braking Performance of Water-Cooled Eddy Current Retarder
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Access"
DOI: 10.1109/access.2021.3058243
Abstract: Trucks have the problems of frequent braking and long-term braking during long-slope transportation. As the temperature of the traditional eddy current retarder is as high as 500 °C during braking, the braking torque of the… read more here.
Keywords: water cooled; field; eddy current; temperature ... See more keywords
Study on Braking Characteristics of a Novel Eddy Current-Hydraulic Hybrid Retarder for Heavy-Duty Vehicles
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Energy Conversion"
DOI: 10.1109/tec.2020.2978304
Abstract: Heavy-duty vehicles are generally equipped with non-contact hydraulic retarders or eddy current retarders to ensure safe driving during downhill conditions. The torque of the hydraulic retarder is large when the rotor rotates at a high… read more here.
Keywords: speed; eddy current; heavy duty; duty vehicles ... See more keywords
Design of a superachromatic quarter-wave retarder for near-infrared region using flower pollination algorithm
Sign Up to like & getrecommendations! Published in 2019 at "Optical Engineering"
DOI: 10.1117/1.oe.58.9.095101
Abstract: Abstract. Phase retarders normally exhibit strong wavelength dependence. However, for use with polychromatic light, achromatic retarders, which exhibit ideally nearly identical characteristics over a wide wavelength region, are in demand. Designing such a superachromatic retarder… read more here.
Keywords: pollination algorithm; region; near infrared; quarter wave ... See more keywords
Generalized elliptical retarder design and construction using nematic and cholesteric phase liquid crystal polymers.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.456874
Abstract: Elliptical retarders have important applications in interferometry and polarimetry, as well as imaging and display technologies. In this work, we discuss the traditional elliptical retarder decomposition using Pauli matrices as basis sets and then introduce… read more here.
Keywords: elliptical retarder; liquid crystal; design; phase liquid ... See more keywords
On the optimal ways to perform full Stokes measurements with a linear division-of-focal-plane polarimetric imager and a retarder
Sign Up to like & getrecommendations! Published in 2019 at "Optics Letters"
DOI: 10.1364/ol.44.002927
Abstract: Estimating the full Stokes vector with a linear division of focal plane (DoFP) camera and a retarder requires at least two image acquisitions with different retarder settings. We determine the optimal settings (retardances and angles)… read more here.
Keywords: focal plane; full stokes; linear division; retarder ... See more keywords
The Effects of Combined Retarders on the Properties of Desulfurized Gypsum
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Testing and Evaluation"
DOI: 10.1520/jte20180778
Abstract: As a relatively fast-setting building material, desulfurized gypsum is difficult to use. Citric acid, sodium gluconate, and sodium tripolyphosphate were used to design and prepare a desulfurized gypsum paste containing single or combined retarders. The… read more here.
Keywords: properties desulfurized; gypsum; citric acid; combined retarders ... See more keywords
Study on the Mechanical Properties of Cast-In-Situ Phosphogypsum as Building Material for Structural Walls
Sign Up to like & getrecommendations! Published in 2023 at "Materials"
DOI: 10.3390/ma16041481
Abstract: The application of cast-in-situ phosphogypsum as the wall material of building structures can greatly reduce the environmental pollution caused by phosphogypsum. Through the uniaxial compression test of cast-in-situ phosphogypsum specimens, the compressive strength of cast-in-situ… read more here.
Keywords: retarder; situ phosphogypsum; cast situ; elastic modulus ... See more keywords