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Introduction The spent catalyst waste from the fluidized catalytic cracking unit (FCC) of the oil refinery can be used in different cementitious materials (binders, mortars, and concretes) as an active additive [ 1 – 16

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-G-GFA NS Water absorption 6.9% 6.2% 0.9% Co-efficient of Uniformity (C u ) 4.51 4.53 1.59 Co-efficient of Curvature (C c ) 1.31 1.33 0.82 Compressive strength of mortar specimens (kN/mm 2 ) 20.10 21.11 23.56 Fig. 1. G-GFA Fig. 2. Natural sand For the

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Journal of Thermal Analysis and Calorimetry
Authors: Armando Lucas Cherem da Cunha, Mariana Santos Lemos, Sergio Meth, Jardel Pereira Gonçalves, and Jo Dweck

1. Chen , H , Tseng , Y , Hsu , K , Spent , FCC . Catalyst as a pozzolanic material for high-performance mortars . Cem Concr Compos . 2004 ; 26 : 657 – 664 . 10.1016/S0958

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:(1%Dy,1%Pr) via grinding in agate mortar and subsequently heated at 600 °C for 2 h, 900 °C for 6 h, and 1000.0 °C for 2 h. Experimental Rare-earth ion containing magnesium titanate were prepared by heating a mixture with a

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maximum mechanical strength for the hardened concrete [ 16 ]. Geopolymerization, an irreplaceable technique, is already used in the construction industry by replacing the ordinary Portland cement with geopolymers for developing mortars as well as concrete

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. Prikryl , R. , A. Štastná 2010 : Contribution of clayey–calcareous silicite to the mechanical properties of structural mortared rubble masonry of the medieval Charles Bridge in Prague (Czech Republic) . – Engineering Geology , 115 , pp

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(Merck, Germany) were weighed in suitable molar proportions and subsequently ground manually in a porcelain mortar to obtain a homogenous reaction mixture. The reaction mixtures were heated at temperature range from 1,200 to 1,600 °C (2 h) in electric

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measured in the Key Laboratory of Road and Traffic Engineering of the Ministry of Education according to GB/T17671-1999 Method [ 17 ]. The size of mortar block is 40 × 40 × 40 mm 3 , and the ratio of the ingredient was listed in Table 1 . The specimens in

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Journal of Thermal Analysis and Calorimetry
Authors: M. R. Serafini, P. P. Menezes, L. P. Costa, C. M. Lima, L. J. Quintans Jr, J. C. Cardoso, J. R. Matos, J. L. Soares-Sobrinho, S. Grangeiro Jr, P. S. Nunes, L. R. Bonjadim, and A. A. S. Araújo

agate mortar containing powdered β-CD under manual agitation. The p -cymene/β-CD 1:1 molar ratio was maintained as described for the inclusion complex preparation, and the mechanical mixture was stored in airtight glass containers. Paste

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nominal composition x = 0.5 and RE = Er, Ho, La, Nd, Dy, Lu and Y have been prepared. Above mentioned oxides were weighed in the required stoichiometric amounts and then were homogenized in an agate mortar. The mixtures were calcinated in porcelain

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