Effects of CuO nanoparticles on compressive strength of
Jul 14 2011 · In the present study the compressive strength thermal properties and microstructure of self-compacting concrete with different amounts of CuO nanoparticles have been investigated. CuO nanoparticles with an average particle size of 15 nm were added to self-compacting concrete and various properties of the specimens were measured. The results indicate that CuO nanoparticles are mm when 1.1 nano-zirconia added the same behavior observed in mix that contain nano alumina powder. The compressive strength increases when nano-zironia added themaximum value of compressive strength obtained when 0.7 nano-zirconia added (45.3MPa at 28 days 48.3 MPa at 60 days and 52.3 MPa at 90 days). Moreover splitting tensile strength was
Get Price
PAPER OPEN ACCESS The Effect of Nano Ceramic Powders
mm when 1.1 nano-zirconia added the same behavior observed in mix that contain nano alumina powder. The compressive strength increases when nano-zironia added themaximum value of compressive strength obtained when 0.7 nano-zirconia added (45.3MPa at 28 days 48.3 MPa at 60 days and 52.3 MPa at 90 days). Moreover splitting tensile strength was Jul 14 2011 · In the present study the compressive strength thermal properties and microstructure of self-compacting concrete with different amounts of CuO nanoparticles have been investigated. CuO nanoparticles with an average particle size of 15 nm were added to self-compacting concrete and various properties of the specimens were measured. The results indicate that CuO nanoparticles are
Get Price
EXPERIMENTAL STUDY ON STRENGTH PROPERTIES OF
house effect. Nano technology is one of the most promising areas of science. The use of nano materials in concrete is new revolution. Nano materials like nano silica nano titanium oxide carbon nano tubes nano alumina etc which are presently used in concrete to modify its strength properties. In the present study strength properties such Apr 30 2019 · This paper presents the effect of nano alumina (NA) on compressive strength and microstructure of cement paste containing high volume blast
Get Price
Experimental study on mechanical properties of high
materials like nano-silica nano titanium oxide carbon nano tubes nano alumina etc. which are presently used in concrete to modify its strength properties. This study summarises the effect or influence of nano-silica on mechanical properties such as compressive strength split tensile strength of the effect of alumina nano dispersion in the fiber/epoxy composite on the compressive strength to the bulk material. Furthermore the compressive strength of hybrid composite prepared by adding a constant 2wt. of alumina particles to the fiber-reinforced composites was
Get Price
Synthesis of nano-alumina and their effect on structure
a compressive strength test. The results showed that the insertion of nano-alumina powder improves geopolymer strength. From FTIR and XRD spectra we found that the structure and geopolymer gel content were enhanced especially for the optimized proportion of nano alumina (2 ) leading to a more homogenous structure as shown in SEM images In this work an attempt has been made to study the effect of nano alumina on the properties of concrete composite. In order to investigate the effect of nano-alumina on the mechanical strength of cement composite the specimens with different volume percentages (0 0.5 0.75 and 1 ) nano-alumina in each proportion three sample were cast totally
Get Price
Effects of MgO Nano Particles on Microstructural and
Effects of MgO Nano Particles on Microstructural and Mechanical Properties of aluminum matrix composites improves the mechanical properties. Keywords Al matrix composite nano MgO powder metallurgy mechanical properties reinforcement. compressive strength wear resistance and etc. Casting and powder metallurgy are the Therefore the compressive strength for an octet-truss material can be expressed as Deshpande et al. (2001) σ = min √2π3n2E 2 (r l)4 2√2π(r l)2σf . (7) The extension of the expression (7) to non-slender cubic frame lattices was obtained through the analysis of an octet unit cell constrained to deform laterally.
Get PriceStudy of Effect of Nanomaterials as Cement Replacement on
strength (7 days) and the nano particle can be used as an agent for activating hydraulic properties of belite cement thereby changes in microstructure causes improved mechanical property. The nano Alumina fill the ITZ of cement- sand and some capillary in the matrix and hence the elastic modulus and compressive strength of mortars were increased. a compressive strength test. The results showed that the insertion of nano-alumina powder improves geopolymer strength. From FTIR and XRD spectra we found that the structure and geopolymer gel content were enhanced especially for the optimized proportion of nano alumina (2 ) leading to a more homogenous structure as shown in SEM images
Get Price
(PDF) Hybrid Effect of Nano-Alumina and Nano-Titanium
This paper presents the effect of nano alumina (NA) on compressive strength and microstructure of cement paste containing high volume blast furnace slag (HVBFS) contents of 70 80 and 90 as 0.5 1 1.5 2 2.5 3 of Nano alumina and 10 of Fly Ash. The compressive test on hardened concrete were performed on Universal testing machine. Concrete cubes of size 150 150 150mm were cast. Total 72 cubes were cast for determination of compressive strength. Compressive strength of concrete cubes was
Get Price
PAPER OPEN ACCESS Related content Characteristics of
In this work an attempt has been made to study the effect of nano alumina on the properties of concrete composite. In order to investigate the effect of nano-alumina on the mechanical strength of cement composite the specimens with different volume percentages (0 0.5 0.75 and 1 ) nano-alumina in each proportion three sample were cast totally Compressive strength and splitting tensile strength of concrete mix with nano alumina increased highly with increasing content of Al 2 O 3 and reach its optimum value at 1.1 of Al 2 O 3 in NA6. Alumina powder has a high ability to diminish pores size and to increase density of concrete mixture so low permeability low water absorption
Get Price
Synthesis of nano-alumina and their effect on structure
a compressive strength test. The results showed that the insertion of nano-alumina powder improves geopolymer strength. From FTIR and XRD spectra we found that the structure and geopolymer gel content were enhanced especially for the optimized proportion of nano alumina (2 ) leading to a more homogenous structure as shown in SEM images In this study the roles of reactive alumina and process variables such as sodium content and molarity on the alkaline activation of nano-silica and ground-granulated blast-furnace slag are explored. Reactive alumina content of fly ash is the key parameter that determines the maximum compressive strength achieved from the alkaline activation.
Get Price
The Effect of Nano Ceramic Powders On Mechanical and
Compressive strength and splitting tensile strength of concrete mix with nano alumina increased highly with increasing content of Al 2 O 3 and reach its optimum value at 1.1 of Al 2 O 3 in NA6. Alumina powder has a high ability to diminish pores size and to increase density of concrete mixture so low permeability low water absorption Jan 01 2017 · It has been observed from the results that the addition of nano-alumina indicated moderate increase in the compressive strength and substantial increase in fire resistance properties of the cement mortar however it was observed a decrease in workability of cement mortar.
Get Price
Effect of Accelerated Weathering on the Compressive
compressive strength under the effect of accelerated weathering (moisture and UV radiation) increased with the addition of nano powders (fly ash fly dust zirconia and aluminum). As well as the results showed that the maximum values of compressive strength reach to (286.25MPa) for (PMMA 2 nZrO2) nano composite. and twenty eigth day the compressive strength were 56.6N/mm2 and 28.28N/mm2 respectively and it was maximum at 1 replacement of Nano silica . 4. The replacement of Nano-Alumina at 1 of compressive strength were compared to PCC. It was maximum at 1 At both seventh and twenty eigth 2day maximum a 28.16N/mm and 48.45 N/mm 2respectively. 5.
Get PriceInvestigation on the effect of addition of nano alumina
Nazari et al. 17 investigated the effect of addition of nano alumina with average diameter of 15 nm on concrete as partial replacement of cement. They conducted compressive strength test on cubic specimens with the dimension of 10 cm with 0.5 1 1.5 2 contents of nano alumina. The results indicated that the materials like nano-silica nano titanium oxide carbon nano tubes nano alumina etc. which are presently used in concrete to modify its strength properties. This study summarises the effect or influence of nano-silica on mechanical properties such as compressive strength split tensile strength
Get Price
Frontiers Effect of Magnesium as Substitute Material in
The optimization of enzyme-mediated calcite precipitation was evaluated as a soil-improvement technique. In our previous works purified urease was utilized to bio-catalyze the hydrolysis of urea which causes the supplied Ca2 to precipitate with CO32− as calcium carbonate. In the present work magnesium chloride was newly added to the injecting solutions to delay the reaction rate and to Aug 21 2019 · Through the microstructure improvement NS was found to enhance most of concrete mechanical and durability properties. The effects of incorporating NS on concrete compressive flexural and tensile strengths water permeability sulfate resistance and resistance to chloride permeability were reviewed and discussed.
Get Price
EFFECT OF NATURAL ADDITIVE ON MICRO PROPERTIES OF
Based on experiment the compressive strength of concrete cubes was all increased by incorporating nano alumina into matrix when the fraction of nano alumina was 1 of the cement by weight the Li et al. 9 observed that nano-alumina significantly increases the modulus of elasticity (up to 143 at a dosage of 5 ) but it has a limited influence on the compressive strength. Nazari et al. 10 investigated the compressive strength and workability of concrete by partial replacement of cement with nano
Get Price
The effect of nanoalumina on early hydration and
Mar 30 2019 · R. Gowda H. Narendra D. Rangappa R. PrabhakarEffect of nano-alumina on workability compressive strength and residual strength at elevated temperature of Cement Mortar Mater. Today Proc. 4 (2017) pp. Apr 01 2019 · This paper presents the effect of nano alumina (NA) on compressive strength and microstructure of cement paste containing high volume blast furnace slag (BFS) contents of 70 80 and 90 as partial replacement of cement and combined BFS and class F fly ash (FA) contents of 70 and 80 as partial replacement of cement. FA is used at 30 as partial replacement of BFS.
Get Price
Effects of MgO Nano Particles on Microstructural and
Effects of MgO Nano Particles on Microstructural and Mechanical Properties of aluminum matrix composites improves the mechanical properties. Keywords Al matrix composite nano MgO powder metallurgy mechanical properties reinforcement. compressive strength wear resistance and etc. Casting and powder metallurgy are the Uniaxial compressive strength test results showed that adding cement and nano-aluminum are both increase uniaxial strength of samples. It was also seen that by increasing the percentage of cement and nano-aluminum uniaxial strength will further increase and this increase has a direct relationship with the passage of time.
Get Price
The Effect of Nano SiO2 Nano Al2O3 and Nano Fe2O3 on the
The effects of nano-silicon dioxide nano-aluminum oxide (Al 2 O 3) and nano-iron oxide (Fe 2 O 3) on the compressive strength and the fluidity of the MPC-based mortar are experimentally investigated in this study. The micromorphology and composition of the MPC-based mortar with nanoparticles were captured using scanning electron microscopy compressive strength and flexion strength of geopoly-mers mixed with 2 nano-alumina 9 . Khater et al. studied the structural and mechanical properties of geopolymers having various carbon nano-tube (CNT) content 10 and Duan et al. studied the effect of TiO 2 nanoparticles on the carbonation shrinkage compres-sive strength and
Get Price
