Basic and Hygric Properties of Concrete Containing Fine Ceramic Powder

2014 ◽  
Vol 897 ◽  
pp. 188-191 ◽  
Author(s):  
Pavel Reiterman ◽  
Ondřej Holčapek ◽  
Monika Čáchová ◽  
Filip Vogel ◽  
Marcel Jogl ◽  
...  
Keyword(s):  
Ceramic Powder ◽  
Pozzolanic Reaction ◽  
Experimental Program ◽  
Hardened Concrete ◽  
Capillary Porosity ◽  
Fine Ceramic ◽  
Powder Addition ◽  
Hygric Properties ◽  
Positive Effect ◽  
Fine Ceramic Powder

The motivation for utilization of active admixtures in concrete lies primarily in a positive effect on properties of hardened concrete with regard to its durability. Fine parts complement the grain size distribution curve, but also due to subsequent hydration arise phases with better resistance to aggressive substances from surrounding environment. Process of pozzolanic reaction is also associated with a reduction in open capillary porosity, causing a gradual reduction of the permeability of concrete. The paper presents an experimental program focused on the monitoring of evolution of basic and hygric properties of concrete with fine ceramic powder addition.

Fracture Properties of Cement Pastes Modified by Fine Ground Ceramic Powder

2014 ◽  
Vol 1054 ◽  
pp. 182-187 ◽  
Author(s):  
Pavel Reiterman ◽  
Ondřej Holčapek ◽  
Kirill Polozhiy ◽  
Petr Konvalinka
Keyword(s):  
Ceramic Powder ◽  
Cement Composites ◽  
Cement Pastes ◽  
Fine Ceramic ◽  
Fracture Properties ◽  
Final Fracture ◽  
Powder Addition ◽  
Mechanical And Fracture Properties ◽  
Fine Ceramic Powder ◽  
Previous Assumption

Paper deals with utilization of fine ground ceramic powder as a supplementary cement addition. Present work follows previous research focused on the basic physical and hygric properties of cement composites with ceramic powder application. Present work introduce rheological, mechanical and fracture properties of cement pastes investigated during maturation at time 7 days. Presented data are added by results of pore characteristic having essential impact to final properties. Obtained data confirm previous assumption of retarding of hydration process, but final fracture properties indicate increased durability of cement pastes with fine ceramic powder addition.

scholarly journals Freeze injection and compression molding of fine ceramic powder by using water binder.

1987 ◽  
Vol 34 (9) ◽  
pp. 383-386 ◽  
Author(s):  
Takeo Nakagawa ◽  
Nobuyuki Takahashi ◽  
Hiroyuki Noguchi ◽  
Reiko Cho
Keyword(s):  
Ceramic Powder ◽  
Compression Molding ◽  
Fine Ceramic ◽  
Fine Ceramic Powder

Preparation and properties of BaTiO3 ceramics from the fine ceramic powder

2015 ◽  
Vol 41 ◽  
pp. S111-S116 ◽  
Author(s):  
Xia Zhao ◽  
Wenfeng Liu ◽  
Wei Chen ◽  
Shengtao Li
Keyword(s):  
Ceramic Powder ◽  
Fine Ceramic ◽  
Fine Ceramic Powder

Fine Ceramic Powder – Supplementary Cementitious Material for Mortar Mix Design

2016 ◽  
Vol 707 ◽  
pp. 35-42
Author(s):  
Tereza Kulovaná ◽  
Jaroslav Pokorný ◽  
Milena Pavlíková ◽  
Martina Záleská ◽  
Zbyšek Pavlík
Keyword(s):  
Physical Properties ◽  
Size Distribution ◽  
Mercury Intrusion Porosimetry ◽  
Ceramic Powder ◽  
Cementitious Material ◽  
Supplementary Cementitious Material ◽  
Fine Ceramic ◽  
Modulus Measurement ◽  
Fine Ceramic Powder ◽  
Hollow Bricks

Waste ceramic powder originating from the contemporary hollow bricks production is studied as a supplementary cementitious material in mortar composition. For the ceramic powder and cement, the measurement of chemical composition is done using XRF analysis. XRD device is used for the amorphous phase content measurement. The particle size distribution of ceramics and cement is accessed on a laser diffraction principle. Pozzolanic activity of ceramic powder was determined by the modified Chapelle test. The blended binder containing ceramic powder in an amount of 8, 16, and 24% of mass of cement is used for the preparation of mortars which are then characterized using the measurement of basic physical properties and mechanical properties. Among the basic physical properties, bulk density, matrix density and total open porosity are measured. The mechanical resistivity of mortars with blended binder is accessed by the compressive strength, flexural strength, and dynamic Young’s modulus measurement. Additionally, pore-size distribution of the developed mortars is analyzed using mercury intrusion porosimetry. Experimental data shows that an application of 24% waste ceramics in the blended binder provides sufficient mechanical resistivity of the mortar.

Experimental analysis of fire resistant composite containing fine ceramic powder

2015 ◽  
Author(s):  
O. Holčapek ◽  
P. Reiterman ◽  
M. Jogl ◽  
J. Koťátková ◽  
P. Konvalinka
Keyword(s):  
Experimental Analysis ◽  
Ceramic Powder ◽  
Fine Ceramic ◽  
Fine Ceramic Powder

Study of pore structure of refractory concrete with ceramic powder addition

2019 ◽  
Author(s):  
Ondřej Holčapek ◽  
Jan Machovec ◽  
Jaroslav Pokorný
Keyword(s):  
Pore Structure ◽  
Refractory Concrete ◽  
Ceramic Powder ◽  
Powder Addition

scholarly journals DEVELOPMENT OF LIGHTWEIGHT CONCRETE FROM EXPANDED CLAY MODIFIED WITH TIRE RUBBER WASTE

2021 ◽  
Author(s):  
Herbet Alves Oliveira
Keyword(s):  
Water Absorption ◽  
Lightweight Concrete ◽  
Experimental Program ◽  
Size Analysis ◽  
Mechanical Resistance ◽  
Hardened Concrete ◽  
Fine Aggregate ◽  
Specific Mass ◽  
Tire Rubber ◽  
Rubber Waste

Lightweight concrete has as main characteristic its low density due to the incorporation of light materials such as expanded clay, or even the incorporation of air whose function is to reduce the density, characteristic of cellular concrete. In Aracaju city, there are companies that promote tire reconditioning, generating large amounts of waste dust. The aim of this work is to study the reuse of tire rubber waste in light concrete from expanded clay. An experimental program was developed for the analysis of these concretes, varying the percentage of 1%, 2.5% and 5% of the tire rubber waste to replace the natural fine aggregate and 100% replacing the natural coarse aggregate by expanded clay (50% of expanded clay C1506 and 50% of C2215). The materials (cement, sand, expanded clays and tire rubber waste) were characterized through tests of particle size analysis and unit mass. The hardened concrete was evaluated through mechanical tests of axial compression strength, modulus of elasticity and tensile strength by diametrical compression, physical tests of water absorption and specific mass, in addition to image analysis by scanning electron microscopy. The use of expanded clay with incorporation of 1% of tire rubber waste guaranteed better results in mechanical resistance, lower water absorption and greater specific mass than the mixtures with 2.5 and 5%, reaching values close to the reference concrete. Thus, the residue can be an alternative for reuse, avoiding disposal.

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