MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Concrete impact resistance
Impact resistance of ultrahigh performance concrete
2021年12月1日 To improve the impact resisting performance of reinforced concrete (RC) components, three strengthening designs based on ultrahigh performance concrete (UHPC) 2019年11月1日 Hybrid FRC with 09% steel + 01% PP fibers provided the best impact resistance, including impact energy of 17 kJ, which is 16 and 60 times higher than those of Impact resistance of fiberreinforced concrete – A review2023年11月30日 Ultrahighperformance concrete (UHPC) is a cementbased material with excellent impact resistance Compared with traditional concrete, it possesses ultrahigh strength, ultrahigh toughness, and ultrahigh durability, Impact Resistance of UltraHighPerformance Concrete 2015年10月22日 We presented a computational framework for predicting the impact resistance of reinforced concrete structure This framework is based on a meshfree Lagrangian method which guarantees the applicability to large Impact Resistance of Concrete Structures Wiley
Research on Impact Resistance of Reinforced Concrete
2022年5月11日 When reinforced concrete structures are subjected to impact loads, they may suddenly yield or fail, or even collapse as a whole In this paper, the impact resistance of reinforced concrete (RC) beams strengthened with 2024年1月20日 It is observed that the volume fraction of 075 and 050% of macro and micro steel fibre has improved impact resistance with an increase in the percentage of energy Impact resistance of macro and micro steel fibre reinforced self 2023年7月1日 This experimental research aims to evaluate the impact resistance of the crimped wire mesh‐ and steel fiber‐reinforced concrete panels that receive the impact load of the Impact resistance of concrete and fibrereinforced concrete: a 6 天之前 This paper presents an analytical investigation of the impact response and failure mechanisms of reinforced concrete (RC) beams—including both bending and sheartype Impact Response in Flexural Strengthening of Reinforced Concrete
Review on impact response of reinforced concrete
2021年2月26日 Designing protective reinforced concrete (RC) beams against impact loadings is a challenging task It requires a comprehensive understanding of the structural response of RC beams subjected to impact loads2024年1月20日 Janani and Santhi examined the impact resistance of FRC using the modified RBDWI test technique with steel fibre 30 mm in length, diameter of 05 mm, and volume fractions of 075, 115, and 150 percent The research showed that FRC has significantly greater impact resistance than normal concrete in terms of the quantity of blowsImpact resistance of macro and micro steel fibre reinforced self 2022年10月31日 To test the effect of precuring time on the impact resistance of reactive powder concrete (RPC), RPC specimens were cured in a steam curing box at a temperature of 70 °C for 72 h with precuring times of 18, 24, and 30 hPrecuring time effect on reactive powder concrete impact resistance 2021年10月1日 In this paper, the impact resistance of concrete produced with coldbonded fly ash aggregates (FAAs) in partial or full replacement, by volume, of crushed limestone coarse aggregates was investigated Fly ash aggregates were produced as plain (PFAA), with 01% crumb rubber (CRRFAA) Impact resistance of concrete produced with plain and reinforced
Assessment of dynamic responses and impact resistance of
2024年10月30日 Scientific Reports Assessment of dynamic responses and impact resistance of corrugated platereinforced concrete tunnels under irregular rockfall scenarios Skip to main content Thank you for 2021年2月26日 Pham TM, Hao H (2017a) Axial impact resistance of FRPconfined concrete Journal of Composites for Construction 21(2): Crossref Google Scholar Pham TM, Hao H (2017b) Behavior of fiber reinforced polymer strengthened reinforced concrete beams under static and impact loadsReview on impact response of reinforced concrete beams: 2020年10月4日 The concrete structures under impact loading duress may be destroyed within an extremely short period of time The importance and complexity of exploration on the impact resistance of concrete members make this area still open for discussion In the present study, a 3D mesoscale numerical model was established to investigate the effect of the combination of Impact resistance of RC beams under different combinations of Title: Impact Resistance and Test Procedure for Concrete Author(s): Ernest K Schrader Publication: Journal Proceedings Volume: 78 Issue: 2 Appears on pages(s): 141146 Keywords: cavitation; compressive strength; concretes; ductility; erosion; fiber reinforced concretes; impact strength; impact tests; mix proportioning DOI: 1014359/6932 Date: 3/1/1981 Impact Resistance and Test Procedure for Concrete
Influence of Nano Composites on the Impact Resistance of Concrete
2023年3月27日 The addition of nanomaterials to concrete efficiently fills the pores of the concrete, thereby improving its hardening characteristics However, no research is available in the literature that investigated the influence of nanocement (NC), nanosilicafume (NS), nanoflyash (NF), and nanometakaolin (NM), which are used as partial replacements for cement, on the 2024年6月1日 The study on RC structures under impact loads are mainly focused on RC beams and columns It shows that the concrete strength, impact velocity and mass affect their singleimpact resistance and also determine the impact force peak [4], [5], [6]Increased impact velocity will ultimately lead to the shear failure of beamsNumerical evaluation of impact resistance of reinforced concrete In addition, the inclusion of steel or PVA fibres in concrete significantly increases other properties such as stressstrain resistance, impact resistance, resistance to flexural fatigue and Test results of impact resistance according to ASTM DImpact resistance of sustainable construction material using light weight oil palm shells reinforced geogrid concrete slab Z C Muda1, 1G Malik3, F Usman1 , S Beddu , M A Alam 1, K N Mustapha , A H Birima 1, O S Zarroq2 , L M Sidek and M ARashid1 1Centre of Sustainable Technology and Environment , Universiti Tenaga Nasional, Jalan IKRAMUNITEN, 43000 Kajang, Selangor, Impact resistance of sustainable construction material using light
Impact resistance of highstrength fibrereinforced concrete
The current paper presents results from a laboratory experimental study on the resistance of concrete to simulated impact loading of fragments The impact of fragments was simulated by the impact of ogivenosed projectiles with a diameter of 126 mm and a mass of 15 g travelling at velocities from ∼610 to 710 m/s The concrete tested had 28 day compressive strengths from 2014年8月26日 ACI Committee 544 has recognized the dropweight impact test method described in ACI 5442R89 as a standardized test method for the impact testing of FibreReinforced Concrete (FRC) [8](PDF) Impact Testing of Concrete The 2022年7月18日 This study investigated the change of impact resistance in concrete with respect to their sample size and compressive strength as experimental and theoretical(PDF) Determination of the impact resistance of concrete as 2016年8月5日 The impact resistance of concrete was typically improved using additives, specifically fibers, to the polymer matrix or by replacing aggregate with energy absorbent ones Li and Xu ( 2009 ) improved the energy absorption capacity and deformation at failure of PC by adding basalt fibersImproving Impact Resistance of Polymer Concrete Using CNTs
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Impact resistance of concrete and fibrereinforced concrete: a
DOI: 101016/jijimpeng2023 Corpus ID: ; Impact resistance of concrete and fibrereinforced concrete: a review @article{Esaker2023ImpactRO, title={Impact resistance of concrete and fibrereinforced concrete: a review}, author={Mohamed Esaker and Georgia E Thermou and L Leal das Neves}, journal={International Journal of Impact Engineering}, Impact resistance of reinforced concrete columns: experimental studies and design considerations AM Remennikov S Kaewunruen School of Civil, Mining, and Environmental EngineeringImpact resistance of reinforced concrete columns: experimental 2022年10月14日 Concrete impact resistance is an essential property in various applications such as industrial floors, hydraulic structures, and explosionproof structures Given that the use of fiberreinforced concrete in these structures is increasing, it is important to evaluate the impact resistance of concrete using different types of fibersInvestigation of Impact Resistance of HighStrength Portland 2023年11月28日 The impact energy, which signifies the energy absorbed by concrete before failure or cracking under impact load, serves as a crucial indicator of impact resistance performance of concrete The detailed results of impact energy, analyzed via range analysis, are displayed in Table 7 Experimental Study on the Impact Resistance of Polymer
DropWeight Impact Resistance of UltrahighPerformance Concrete
An experimental and statistical study on the impact resistance of ultrahighperformance concrete (UHPC) is presented The impact resistance was evaluated by conducting the dropweight impact test with a hammer of 10 kg following ACI Committee 544 (ACI 5449R17)2005年8月1日 This paper presents results from an experimental study on the impact resistance of concrete with compressive strengths of 45–235 MPa impacted by 126 mm ogivenosed projectile at velocities ranging from ∼620 to 700 m/sThe effects of the compressive and flexural tensile strength of the concrete, the presence of coarse aggregate or steel fibers, and the Resistance of highstrength concrete to projectile impact2023年2月22日 Multiwalled carbon nanotubes (MWCNTs) have not only high strength and toughness, but also good thermal stability and thermal conductivity By investigating the failure patterns and fractal index (ie, impact crushing fractal dimension D f) of MWCNTs reinforced concrete (MC), this paper explored the effect of MWCNTs on impact resistance of concrete Residual impact resistance behavior of concrete containing 2022年11月1日 Currently, steelconcrete composite members represented by concretefilled steel tube (CFST) columns and their derivatives, such as doubleskin CFST members, concreteencased CFST members, and steelreinforced CFST members, are widely used in modern structures for highrise buildings, longspan bridges, longspan transmission towers, and large Impact resistance and simplified evaluation method for square
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Research on Impact Compression Strength and Explosion Resistance
2024年8月17日 The impact test verified that the impact resistance of the composite board was better than that of ordinary concrete At present, most of the research on functionally gradient material is focused on its durability, high temperature resistance and corrosion resistance, but there are few studies in the field of stress wave elimination2024年2月16日 Concrete tiles provide modern aesthetics and highimpact resistance due to their composition They comprise cement, sand, and water Concrete tiles form an interlocking structure that absorbs and distributes the energy of impacts, making the material an ideal roofing material choice for areas prone to hail storms and inclement weather8 Types of ImpactResistant Roofing Materials2023年12月18日 Different kinds of carbon fiber, steel fiber, and polypropylene fiber have a wide influence on the impact resistance of geopolymer concrete, and hybrid fibers will promote the positive hybrid effect of concrete 20 The authors of Ref 21 carried out Split Hopkinson Pressure Bar (SHPB) influence test on basaltwrapped plain concrete, and the results indicated that Impact resistance of geopolymer concrete under different types the concrete impact resistance in the present study In our study, both static mechanical tests and drop hammer impact tests, with Ushaped specimens, were conducted at 20 and−20 °C Moreover, regression analysis was employed for the impact resistance data Previous studies have shown that the incorporation of rubber can aect theEffect of rubber particles on impact resistance of concrete at a
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Static properties and impact resistance performance of Ushaped
2023年8月24日 This study investigated the impact strength of Ushaped polyurethane (PU)modified concrete using repeated dropweight impact tests A Ushaped specimen was introduced in this study to modify the testing procedure of the ACI 5442R committee for the dropweight impact test aiming to minimize the scatter result of this testing method The static Impact drop weight tests, rapid chloride migration coefficient tests, singlesided freeze–thaw tests, and mechanical property tests were performed to investigate the effect of the steel fiber (SF) content on the impact resistance and durability of concrete containing nanoSiO 2 (NS) A fixed NS content of 3% and six SF contents in a range of 0–25% by volume were usedEffect of steel fiber on impact resistance and durability of concrete 2021年11月23日 Highimpact resistance and highimpact energyabsorbing capability are the beneficial properties for rubberized concrete in regions where seismic activities are frequent Compared to standard concrete, rubberized concrete has greater flexibility, impact resistance, and lower unit weight Waste tire rubber crumb with a content of 0, 10, 15, 20, 25, and 30%, and a Assessment of Mechanical and Impact Resistance Properties of 2021年6月22日 The static mechanical strengths and impact resistance of rubberised concrete at 20 °C and − 20 °C were investigated in this study Impact tests were conducted using a Ushaped dropweight impact test apparatus, and statistical analysis was employed to study the impact resistance of the rubberised concreteEffect of rubber particles on impact resistance of concrete at a
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Determination of the impact resistance of concrete as
1 INTRODUCTION In general, many structures are exposed to shortterm dynamic effects Therefore, a structure must be protected not only against static loads but also against dynamic effects [1 [1] RAMESH, K, ARUNACHALAM, 2008年3月1日 The results showed that the impact resistance of rubberized concrete was higher, and it was particularly evident in concrete samples aggregated with thick rubber View Show abstractImpact resistance of rubberized concrete2020年12月20日 There are many tests on the resistance of concrete members to impact loads, for instance drop hammer impact test [27], pendulum impact test [28], SHPB test [29], etc Vafaei [30] studied the influence of PP fiber on the dynamic fracture performance of SWSSC by drop hammer impact test, found that in some cases, a high proportion of PP fiber can Effect of the fibre type on concrete impact resistance2021年12月16日 21 Details of Materials and Specimen Fabrication The normal concrete (NC) mix proportion was established based on the target compressive strength of 45 MPa at 28 days, and the materials used in this paper are reported in Table 1Type I Portland cement (density of 315 g/cm 3 and specific surface area of 3413 cm 2 /g), crushed fine aggregate (density of Shielding Effectiveness and Impact Resistance of Concrete Walls
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Effect of the fibre type on concrete impact resistance
2020年12月20日 Banthia et al [18] compared the flexure impact resistance, through a simple dropweight impact instrumented test, on plain concrete and on steel and polypropylene FRC They found that 05% in volume of polypropylene fibres increased near 50% the fracture energy while 15% of steel fibres triplicated itSlagbased geopolymer concrete’s punching shear and impact resistance are impacted by adding of steel fibers at 05%, 1%, and 15% Greater energy absorption was demonstrated by concrete that includes 10% steel fiberintegrated geopolymer with toughness values of 412388 Nm for ultimate failure and 377440 Nm for first crack toughnessStrength Characteristics and Impact Resistance of Fiber 2015年1月1日 Different percentages of polymers have been added to concrete, to evaluate its impact resistance Mixes have been made for plain concrete with crushed stone, also plain concrete mixes with round (PDF) Impact Resisting Concrete ResearchGate2022年2月1日 To the best of the authors’ knowledge, there remains no study reporting the dynamic properties of 3Dprinted concrete, given that the main research interests have been on the mechanical behaviours at static state [20]Additionally, the dynamic properties of biomimetic Bouligand structures that have been mostly investigated so far were characterized by the 3D concrete printing of bioinspired Bouligand structure: A study
Impact resistance of concrete with nano materials ScienceDirect
2021年1月1日 1 Introduction Nanotechnology is the use of very small particles of size 10 −9 m, Surinder Mann [18], Bhuvaneshwari et al [2], Florence Sanchez and Konstanin Sobolev [3] reported that the size of nano particles used in concrete may be upto 200 nm Perumalsamy Balaguru and Ken Chong [15] reported that particle size upto 500 nm and Radu Olar [16]
