Ternary Blended Cement with Limestone Filler and Kaolinitic Calcined Clay

2015 ◽  
pp. 195-201 ◽  
Author(s):  
Alejandra Tironi ◽  
Alberto N. Scian ◽  
Edgardo F. Irassar
Keyword(s):  
Blended Cement ◽  
Limestone Filler ◽  
Calcined Clay

Formulation of blended cement by the combination of two pozzolans: Calcined clay and finely ground sand

2014 ◽  
Vol 50 ◽  
pp. 609-616 ◽  
Author(s):  
W. Mechti ◽  
T. Mnif ◽  
M. Chaabouni ◽  
J. Rouis
Keyword(s):  
Blended Cement ◽  
Calcined Clay

Microstructure of Cement Blends Including Fly Ash, Silica Fume, Slag and Fillers

1986 ◽  
Vol 86 ◽  
Author(s):  
Micheline Regourd
Keyword(s):  
Fly Ash ◽  
Portland Cement ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Silica Fume ◽  
Blended Cement ◽  
Cement Clinker ◽  
Microstructural Development ◽  
Limestone Filler ◽  
Portland Cement Clinker

ABSTRACTThe hydration of a blended cement through hydraulic or pozzolanic reactions results in heterogeneous polyphase materials. Because portland cement clinker is the major component in most cement blends, the microstructural development of portland cement hydrates, including C-S-H and pore structures, is first discussed. Slag, fly ash, silica fume and limestone filler cements are then compared to portland cement with regards to C-S-H morphology and composition, aluminate crystallization, cement paste interfaces and pore size distribution.

Hydration of Blended Cement with Halloysite Calcined Clay

2017 ◽  
pp. 455-460
Author(s):  
Alejandra Tironi ◽  
Fernanda Cravero ◽  
Alberto N. Scian ◽  
Edgardo F. Irassar
Keyword(s):  
Blended Cement ◽  
Calcined Clay

Studies on γ-irradiated polymer–nano calcined clay blended cement mortar composites

2013 ◽  
Vol 19 (2) ◽  
pp. 361-368 ◽  
Author(s):  
M.R. Ismail ◽  
H.A. Abdel-Rahman ◽  
M.M. Younes ◽  
E. Hamed ◽  
S.H. El-Hamouly
Keyword(s):  
Cement Mortar ◽  
Blended Cement ◽  
Calcined Clay

Diffusion of chloride ions in limestone filler blended cement pastes and mortars

1995 ◽  
Vol 25 (8) ◽  
pp. 1667-1678 ◽  
Author(s):  
H. Hornain ◽  
J. Marchand ◽  
V. Duhot ◽  
M. Moranville-Regourd
Keyword(s):  
Blended Cement ◽  
Chloride Ions ◽  
Limestone Filler ◽  
Cement Pastes

OPTIMAL CRITERIA OF ALGERIAN BLENDED CEMENT USING LIMESTONE FINES/ALŽYRIETIŠKAS MIŠRUSIS CEMENTAS SU MALTU KALKAKMENIU

2008 ◽  
Vol 14 (4) ◽  
pp. 269-275 ◽  
Author(s):  
Z’hor Guemmadi ◽  
Musa Resheidat ◽  
Hacéne Houari ◽  
Belkacem Toumi
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Blended Cement ◽  
Total Porosity ◽  
Hardened Cement ◽  
Compact Structure ◽  
Limestone Filler ◽  
Cement Pastes ◽  
Limestone Fines ◽  
Hardened Cement Pastes

The effect of substitution of Portland cement by limestone up to 40% as well as its fineness on the physico‐mechanical properties of fresh and hardened cement pastes is studied. The binder was prepared by substitution of cement by limestone filler. Fillers were chosen of various particle sizes and with percentages from 5 to 40. Test results revealed that the replacement of Portland cement by the finest filler of limestone slightly decreases the consistency and the setting times (initial and final). The total porosity decreases and accordingly the compressive strength is improved with the content and fines of limestone. Although limestone has a little accelerating effect on the hydration process of Portland cement, but acts only as a filler reducing the porosity due to its compact structure, in which the compressive strength of the hardened cement paste is enhanced. The XRD and DTA analyses of samples cured up to 28 days showed that this amelioration is due to formation of new hydrated compounds. It is concluded that an addition of finely ground limestone filler only up to 15% gives a better strength. Santrauka Tirtos šviežios ir sukietėjusios cementinės tešlos, kurioje iki 40 % cemento pakeista įvairaus smulkumo maltu kalkakmeniu, savybės. Rišiklis buvo paruoštas dalį cemento pakeitus maltu kalkakmenio užpildu. Užpildo dalelės buvo įvairaus dydžio, o jų kiekis buvo keičiamas nuo 5 % iki 40 %. Tyrimai parodė, kad priedas leidžia sumažinti vandens kiekį, reikalingą tos pačios konsistencijos mišiniui gauti, taip pat cemento rišimosi pradžiai ir pabaigai paankstinti. Sumažėja cementinio akmens suminis poringumas ir atitinkamai padidėja stipris gniuždant cementinio akmens, kuriame yra kalkakmenio priedų. Nors kalkakmenio priedas nedaug pagreitina portlandcemenčio hidratacijos procesą, tačiau veikia kaip užpildas, sutankinantis struktūrą, dėl to labai padidėja sukietėjusio cementinio akmens stipris gniuždant. Bandinių, išlaikytų 28 dienas, rentgenostruktūrinė ir diferencinė terminė analizė parodė, kad pagerėjimas yra dėl susidariusių naujadarų. Apibendrinant galima teigti, kad 15 % malto kalkakmenio priedas turi didžiausią įtaką stiprumo rezultatams.

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