Essential articles

Latest subject

Get Price And Support

Fly Ash Pastes Mechanical

  • Chloride Resistance of Alkali Activated Slag Pastes with .

    One of the possibilities is using the materials based on alkali activated slag (AAS). In this paper the influence of partial replacement of ground granulated blast furnace slag by fly ash in AAS pastes on mechanical properties and porosity of was investigated.

    Chat with sales
  • The Influence Sugarcane Bagasse Ash and Metakaolin on .

    This paper present an optimization of sugarcane bagasse ash and metakaolin on fly ash geopolymer paste with sea water treatment. Mechanical properties were assessed by compressive strenght test (SNI 03-1974-2011), UPV test (ASTM C597 – 16), and porosity test (ASTM C642-90).

    Chat with sales
  • INFLUENCE OF THE COARSE FLY ASH ON THE MECHANICAL .

    Influence of the coarse fly ash on the mechanical properties of the cement mortars Ceramics – Silikáty 54 (2) 144-151 (2010) 145 EXPERIMENTAL Materials used in the investigation Cement The cement used in the study, is the CEM I 42.5 R, cement, commercially available, produced in Dalmacija cement/CEMEX company, Kaštel Sućurac, Croatia,.

    Chat with sales
  • Effect of fly ash–gypsum blend on porosity and pore size .

    The SDW was chosen due to the variability in chemical composition of real desulphurised waste. The SDW is a combination of fly ash and gypsum. The content of fly ash in the SDW changed from 0 to by weight. The water to binder ratio was 0·5. The binder consists of cement and SDW. Cement in the pastes was partially replaced with 25 wt-% SDW.

    Chat with sales
  • Physical and Mechanical Properties of Cement Paste Were .

    The aims of this research were study the microstructures and mechanical properties for partial replacement of cement with Fly ash (FA) and kaolin waste (KW). Ordinary Portland cement were partially replaced with FA and KW in the range of 25-35% and 10-25% by weight of cement powder. The kaolin waste was ground for 180 minutes before using. The specimen was packing into an iron mold which .

    Chat with sales
  • Best Practices Guide for High-Volume Fly Ash Concretes

    Best Practices Guide for High-Volume Fly Ash Concretes: Assuring Properties and Performance . Dale P. Bentz . Chiara F. Ferraris . Kenneth A. Snyder . Materials and Structural Systems Division . Engineering Laboratory . September 2013 . U.S. Department of Commerce . Penny Pritzker, Secretary . National Institute of Standards and Technology

    Chat with sales
  • The Effect of Pb2+ and Cd2+ Addition to Mechanical .

    The geopolymer pastes wer e prepared by mixing 35.25 g fly ash with 8,8 mL of alkaline solution. 10 g Na 2 SiO 3, 4,6 g ram Al(OH) 3 and 2,2 mL heavy metal solution were added to the mixture. The

    Chat with sales
  • Influence of Micro/Nano Sized Fly Ash on the Properties of .

    , salg and fly ash as partial replacement with cement. Partial distribution of micro/ nano in cement paste and mortar is studied in the current research work. This paper highlights the characterization of micro/ nano fly ash by mechanical ball milling process through XRD and SEM. This also assess the

    Chat with sales
  • Degree of Hydration of OPC and OPC/Fly ash Paste Samples .

    cement paste and fly ash blended cement pastes. After 28 days moist curing, the samples were conditioned in , 75%, 65%, 40% and 12% relative humidity. Conditioning of samples in different relative humidity had significant effects on the compressive strength of the mortar samples and the degree of hydration of the paste samples. Conditioning of

    Chat with sales
  • investigation of Geopolymerization process of fly ash .

    In this paper, two of the fly ash-based geopolyemer pastes with water/binder weight ratios, 0.3 and 0.35, were monitored. The activating solution used was a mixture of silica fume, sodium hydroxide and water.

    Chat with sales
  • CiteSeerX — R. ZEJAK et al.: MECHANICAL AND .

    In this paper we have investigated the influence of synthesis parameters on the mechanical properties of the fly-ash-based geopolymer paste and mortars. Moreover, the influence of an addition of limestone sand on the microstructure of fly-ash-based geopolymers was investigated as well.

    Chat with sales
  • Factors influencing the mechanical properties of .

    mechanical properties of lightweight aggregate concrete (LWAC) are discussed in this paper. The fly ash content ranged from 18% to 22% by cement volume, and the water-cement ratios are set to 0.3, 0.33 and 0.36 for each type of LWA.

    Chat with sales
  • Porosity and Pore Size Distribution of Well Hydrated .

    Most paste containing a blend of fly ash and gypsum as cement replacement show higher total pore volume than the reference paste (i.e. mix M1). Paste containing 85% fly ash and 15% gypsum blend yielded the lowest total pore volume compared with all other pastes including the reference. The combination of 85% fly ash and 15% gypsum showed the .

    Chat with sales
  • INFLUENCE OF THE FLY ASH CHEMICAL COMPOSITION ON .

    Influence of the Fly Ash Chemical Composition on the Portland Cement and Fly Ash Mixture Hydration Mechanism 119 Due to the increase of ion (OH)-, concentration, which is a consequence of the crea- tion of Ca(OH)2, the environment becomes more and more alkali.The fly ash which is

    Chat with sales
  • Mechanical & Thermal Properties of Fly Ash Filled ABS

    Mechanical & Thermal Properties of Fly Ash Filled ABS M. T. Bharne1, Dr. S. P. Bhosle2 1,2 Mechanical Engineering Department, MIT, Aurangabad (M.S), India Abstract - Fly ash is used as reinforcing filler in Acrylo Nitrile Butadiene Styrene (ABS) attractive because it is inexpensive and its use can reduce to develop lightweight composites.

    Chat with sales
  • Study on the physical and mechanical property of ordinary .

    Materials and Method 2.1 Materials Received on December, 2011 Published on February 2012 731 Study on the physical and mechanical property of ordinary portland cement and fly ash paste Shaswata Mukherjee, Saroj Mandal, Adhikari.U.B Ordinary Portland Cement (OPC) having 28 day compressive strength of 54 MPa was used.

    Chat with sales
  • The Effect of Fly Ash, Beta-cyclodextrin and Fly Ash-Beta .

    of FA, β-CD and FA- β-CD composites on cement paste viscosity and setting time. T The Effect of Fly Ash, Beta-cyclodextrin and Fly Ash-Beta-cyclodextrin Composites on Cement Paste's Viscosity and Setting Times Bolanle D. Ikotun, George C. Fanourakis and Shivani B. Mishra

    Chat with sales
  • Mineralogical and microstructural characterisation of .

    Abstract. A mechanical, mineralogical and microstructural characterisation of the cement pastes obtained by alkaline activation of fly ash/slag mixtures cured .

    Chat with sales
  • Influence of calcium compounds on the mechanical .

    The influence of calcium compounds (CaO and Ca(OH) 2) on the mechanical properties of fly ash based geopolymers has been studied. Calcium compounds were substituted in fly ash at 1, 2 and 3 wt%, respectively. Curing of the geopolymers was performed at ambient temperature (20 °C) and 70 °C.

    Chat with sales
  • 1 Dynamic Mechanical Analysis of Fly Ash Filled Polyurea .

    Dynamic Mechanical Analysis of Fly Ash Filled Polyurea Elastomer In this work, the material properties of a series of fly ash/polyurea composites were studied. Dynamic mechanical analysis was conducted to study the effect of the fly ash volume fraction on the composite's mechanical properties, i.e., on .

    Chat with sales
  • Mechanical and Microstructural Properties of Fly Ash Based .

    Fly ash is a fine grained dust consisted of melted vitreous particles of spherical shape [1]. The very large quantities are generated from coal-combustion in power plants [3]. American Coal Ash Association declared that 71, 7 million tons of fly ash was produced but only 31 .

    Chat with sales
  • Effect of High-Speed Mixing on Properties . - SpringerLink

    This research studies the effects of mixing time, with a high-speed centrifuge mixer (1,000 rpm), on the setting and hardening properties of high calcium fly ash-based geopolymer paste. Setting time, strength, phase development, microstructure and porosity of the pastes were investigated.

    Chat with sales
  • Mechanical Properties and Microstructure of Class C Fly .

    This paper presents workability, compressive strength and microstructure for geopolymer pastes and mortars made of class C fly ash at mass ratios of water-to-fly ash from 0.30 to 0.35. Fluidity was in the range of 145-173 mm for pastes and 131-136 mm for mortars.

    Chat with sales
  • Delft University of Technology Microstructural and .

    Microstructural and Mineralogical Analysis of Alkali Activated Fly Ash-Slag Pastes Marija Nedeljković (1), Kamel Arbi (1), Yibing Zuo (1) and Guang Ye (1) (1) Materials and Environment (Microlab), Faculty of Civil Engineering and Geosciences,

    Chat with sales
  • Mechanical and thermal behaviour of alkali-activated high .

    To increase the early compressive strength of high volume fly ash concrete, activators are added to the concrete mix. The influence of the type of activator on the hydration of cement as well as on the mechanical performance of the final concrete product is investigated in the current study. From isothermal calorimetric measurements, performed on activated fly ash - cement paste, it can be .

    Chat with sales
  • Mechanical Properties and Microstructure of Class C Fly .

    Hence, composite with fly ash, as reinforcement, and recycled . aluminum reinforced by fly ash with different percentage (0, 3, 6 and 9wt%) were prepared by.

    Chat with sales
  • Variation of Material Properties of Cement Pastes with .

    Cement-Fly Ash Ratio, Maturation of Cement Paste. 1 Introduction The compressive strength and the tensile strength, elastic modulus and fracture energy are important and interesting material properties. Changes in the properties of cement paste [1] with fly ash to pure cement paste can be documented on those parameters.

    Chat with sales
  • Mechanical and Microstructural Characterization of Alkali .

    and solution/fly ash ratio have a significant influence on the mechanical strength of the alka li-activated fly ash pastes. Xie and Xi [15] investigated the hardening mechanisms of an alkaline-activated class F fly ash and concluded that the strength of the paste increased with the decrease of the modulus of water-glass from 1.64 to 1.0.

    Chat with sales
  • Evaluation of Geopolymeric Pastes Through Low Field .

    the fly ash content was detected. This increase, on relaxation time, was associated to the reduction of the ions in the geopolymeric composites' pore solution as the quantity of fly ash content increases, promoting a decrease in the molecular mobility of the hydrogens nuclei in the formed pastes.

    Chat with sales
  • Mechanical Properties of Foam Concrete - icee.cafetinnova

    Mechanical Properties of Foam Concrete . is to study the properties of lightweight foam concrete with addition of various binders /fillers such as Fly ash, Micro silica, Sio2 powder, clay and Rice husk ash. . The cement paste or slurry sets around the foam bubbles and when the foam

    Chat with sales