Structural Changes in Refractory Calcium Aluminate Cement Concrete

2018 ◽  
Vol 59 (2) ◽  
pp. 151-155 ◽  
Author(s):  
Yu. R. Krivoborodov ◽  
S. V. Samchenko ◽  
T. V. Kuznetsova
Keyword(s):  
Calcium Aluminate ◽  
Structural Changes ◽  
Calcium Aluminate Cement ◽  
Cement Concrete ◽  
Aluminate Cement

scholarly journals Physicochemical, Mineralogical, and Mechanical Properties of Calcium Aluminate Cement Concrete Exposed to Elevated Temperatures

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3855
Author(s):  
Amirmohamad Abolhasani ◽  
Bijan Samali ◽  
Fatemeh Aslani
Keyword(s):  
Temperature Rise ◽  
Calcium Aluminate ◽  
Elevated Temperatures ◽  
Ultrasonic Pulse Velocity ◽  
Pulse Velocity ◽  
Calcium Aluminate Cement ◽  
Cement Concrete ◽  
Sem Images ◽  
Strength Deterioration ◽  
Aluminate Cement

One commonly used cement type for thermal applications is CAC containing 38–40% alumina, although the postheated behavior of this cement subjected to elevated temperature has not been studied yet. Here, through extensive experimentation, the postheated mineralogical and physicochemical features of calcium aluminate cement concrete (CACC) were examined via DTA/TGA, X-ray diffraction (XRD), and scanning electron microscopy (SEM) imaging and the variation in the concrete physical features and the compressive strength deterioration with temperature rise were examined through ultrasonic pulse velocity (UPV) values. In addition, other mechanical features that were addressed were the residual tensile strength and elastic modulus. According to the XRD test results, with the temperature rise, the dehydration of the C3AH6 structure occurred, which, in turn, led to the crystallization of the monocalcium dialuminate (CA2) and alumina (Al2O3) structures. The SEM images indicated specific variations in morphology that corresponded to concrete deterioration due to heat.

Evaluation of a Procedure for Determining the Converted Strength of Calcium Aluminate Cement Concrete

2018 ◽  
Vol 46 (4) ◽  
pp. 20160277 ◽  
Author(s):  
Matthew P. Adams ◽  
Racheal D. Lute ◽  
Edward G. Moffatt ◽  
Jason H. Ideker
Keyword(s):  
Calcium Aluminate ◽  
Calcium Aluminate Cement ◽  
Cement Concrete ◽  
Aluminate Cement

Silicate impurities incorporation in calcium aluminate cement concrete: mechanical and microstructural assessment

2021 ◽  
pp. 1-13
Author(s):  
Amirmohamad Abolhasani ◽  
Fatemeh Aslani ◽  
Bijan Samali ◽  
Seyed Hamidreza Ghaffar ◽  
Hossein Fallahnejad ◽  
...  
Keyword(s):  
Calcium Aluminate ◽  
Calcium Aluminate Cement ◽  
Cement Concrete ◽  
Aluminate Cement

scholarly journals STUDY ON DURABILITY OF CALCIUM ALUMINATE CEMENT CONCRETE AT THE AGE OF 50 YEARS

2020 ◽  
Vol 73 (1) ◽  
pp. 141-147
Author(s):  
Daiki SHIMAZAKI ◽  
Taiichiro MORI ◽  
Yukio SASAGAWA ◽  
Etsuo SAKAI
Keyword(s):  
Calcium Aluminate ◽  
Calcium Aluminate Cement ◽  
Cement Concrete ◽  
Aluminate Cement
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