A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Improve the practicability of calcium aluminate phosphate cement as well cement: The application of amphoteric ion polymer as retarder
https://orcid.org/0000-0002-4983-9144
Highlights The amphoteric ion polymer (ASDA) is designed and developed as the retarder. ASDA could extend thickening time of CAPC effectively and efficiently. The properties of CAPC with ASDA meet the demand of well cementing.
Abstract The thickening performance of calcium aluminate phosphate cement (CAPC) just can be improved by several kinds of compound retarders. However, in order to achieve the expected thickening time, the optimal proportion of each component must be controlled strictly, which seriously affects the practicability of CAPC. Therefore, the amphoteric ion polymer (ASDA) synthesized by the solution copolymerization among 2-acrylamido-2-methyl propane sulfonic acid (AMPS), sodium p-styrenesulfonate (SSS), diallyl dimethyl ammonium chloride (DMDAAC), itaconic acid (IA) is proposed as the retarder for CAPC in this paper. First, the molecular structure of ASDA is designed according to the action and failure mechanism of conventional Portland cement retarder in CAPC. And then the retarding effect and mechanism of ASDA in CAPC is researched. Finally, the basic properties of CAPC with ASDA as well cement are evaluated. Results show that the retarding effect of ASDA is excellent at middle temperature range. And CAPC with ASDA possesses superior right angle thickening performance. Although the early compressive strength is weak, the long term compressive strength of CAPC with ASDA just declines slightly. Furthermore, rheology, stability and free water of CAPC with ASDA still meet the demand of cementing engineering.
Improve the practicability of calcium aluminate phosphate cement as well cement: The application of amphoteric ion polymer as retarder
https://orcid.org/0000-0002-4983-9144
Highlights The amphoteric ion polymer (ASDA) is designed and developed as the retarder. ASDA could extend thickening time of CAPC effectively and efficiently. The properties of CAPC with ASDA meet the demand of well cementing.
Abstract The thickening performance of calcium aluminate phosphate cement (CAPC) just can be improved by several kinds of compound retarders. However, in order to achieve the expected thickening time, the optimal proportion of each component must be controlled strictly, which seriously affects the practicability of CAPC. Therefore, the amphoteric ion polymer (ASDA) synthesized by the solution copolymerization among 2-acrylamido-2-methyl propane sulfonic acid (AMPS), sodium p-styrenesulfonate (SSS), diallyl dimethyl ammonium chloride (DMDAAC), itaconic acid (IA) is proposed as the retarder for CAPC in this paper. First, the molecular structure of ASDA is designed according to the action and failure mechanism of conventional Portland cement retarder in CAPC. And then the retarding effect and mechanism of ASDA in CAPC is researched. Finally, the basic properties of CAPC with ASDA as well cement are evaluated. Results show that the retarding effect of ASDA is excellent at middle temperature range. And CAPC with ASDA possesses superior right angle thickening performance. Although the early compressive strength is weak, the long term compressive strength of CAPC with ASDA just declines slightly. Furthermore, rheology, stability and free water of CAPC with ASDA still meet the demand of cementing engineering.
Improve the practicability of calcium aluminate phosphate cement as well cement: The application of amphoteric ion polymer as retarder
https://orcid.org/0000-0002-4983-9144
Highlights The amphoteric ion polymer (ASDA) is designed and developed as the retarder. ASDA could extend thickening time of CAPC effectively and efficiently. The properties of CAPC with ASDA meet the demand of well cementing.
Abstract The thickening performance of calcium aluminate phosphate cement (CAPC) just can be improved by several kinds of compound retarders. However, in order to achieve the expected thickening time, the optimal proportion of each component must be controlled strictly, which seriously affects the practicability of CAPC. Therefore, the amphoteric ion polymer (ASDA) synthesized by the solution copolymerization among 2-acrylamido-2-methyl propane sulfonic acid (AMPS), sodium p-styrenesulfonate (SSS), diallyl dimethyl ammonium chloride (DMDAAC), itaconic acid (IA) is proposed as the retarder for CAPC in this paper. First, the molecular structure of ASDA is designed according to the action and failure mechanism of conventional Portland cement retarder in CAPC. And then the retarding effect and mechanism of ASDA in CAPC is researched. Finally, the basic properties of CAPC with ASDA as well cement are evaluated. Results show that the retarding effect of ASDA is excellent at middle temperature range. And CAPC with ASDA possesses superior right angle thickening performance. Although the early compressive strength is weak, the long term compressive strength of CAPC with ASDA just declines slightly. Furthermore, rheology, stability and free water of CAPC with ASDA still meet the demand of cementing engineering.
Improve the practicability of calcium aluminate phosphate cement as well cement: The application of amphoteric ion polymer as retarder
Liu, Huajie (author) / Bu, Yuhuan (author) / Ma, Rui (author) / Guo, Wenmeng (author)
Construction and Building Materials ; 199 ; 207-213
2018-12-07
7 pages
Article (Journal)
Electronic Resource
English
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