Effect of water to cement ratio, fly ash, and slag on the
When the slag content is increased to 18, the EMI SE reduces to the lowest value out of the three mixes Other two mixes with W/C ratios of 04 and 05 both show that the EMI SE is lowest when the slag content is increased to 18 The SE of mix with a W/C ratio of 04 and slag content of 12 and 15 show nearidentical behaviourSlag cement is a more uniform product than fly ash As a result, concrete made with slag cement will generally have more uniform properties than concrete made with fly ash Plastic Properties Water Reduction The use of either material should result in a reduction of the required water content to reach a given consistencySlag cement with fly ash Slag Cement AssociationFor the mixes with additives, maximum EM shielding amounts of 338 dB and 506 dB were obtained at a frequency of 15 GHz, when the FA content was 18 with a W/C ratio of 04 and GGBFS content of 12 with a W/C ratio of 04, respectively KW Electrical conductivity KW EMI shielding KW Fly ash KW Slag KW Water to cementEffect of water to cement ratio, fly ash, and slag on the
Why use Fly Ash and Slag in Concrete? BayLynx
Another difference between slag and fly ash is that while fly ash will rarely surpass 35% of the cement content, slag can substitute 50% of the cement content, or even higher for different applications This contributes to the large cost savings from slag cement Applications for Fly and Slag The Slag Cement Association with member company and industry input have broken down the differences in slag cement and fly ash and how they both affect concrete performance 1: Slag cement has a more consistent chemical and physical structure than fly ash from source to source and from a The Difference in Slag Cement and Fly Ash Slag Cement News slag and fly ash, alkali content and modulus of water glass on the properties of alkaliactivated phosphorous slag and fly ash cement (AA–PS–FA–C) was studied The results show that AA–PS–FA–C with normal setting performance and desirable mechanical properties can be prepared using water glass as the activatorPREPARATION AND PROPERTIES OF ALKALIACTIVATED
Effects of water content, water type and temperature on
The coupled effect of binder type, water content, water type and temperature is discussed as well 2 Materials The materials used in this study include tailings, two types of binders (Minecem and Portland cement), fly ash (as an additive to reduce the amount of binder), and both fresh and mineprocessed water 21 Mine tailingsFor the mixes with additives, maximum EM shielding amounts of 338 dB and 506 dB were obtained at a frequency of 15 GHz, when the FA content was 18 with a W/C ratio of 04 and GGBFS content of 12 with a W/C ratio of 04, respectively KW Electrical conductivity KW EMI shielding KW Fly ash KW Slag KW Water to cementEffect of water to cement ratio, fly ash, and slag on the Application of Slag–Cement and Fly Ash for Strength Development in Cemented Paste Backfills Yue Zhao , Amin Soltani * , Abbas Taheri *, Murat Karakus and An Deng indicated an optimum water content of wopt = 87% and a maximum dry unit weight of g dmax = 202 kN/m3, which are both on par with that reported for naturalApplication of Slag–Cement and Fly Ash for Strength
"Effect of water to cement ratio, fly ash, and slag on the
Electromagnetic (EM) shielding has become an important aspect in the modern world as the increased usage of electronic devices has a profound effect on the risk of EM pollution within the atmosphere and the harmful effects of EM on humans In the recent decade, there has been an increased number of research focusing on using cementitious materials to be used as EM shielding materials Cement 476 Fly Ash 500 Slag 500 Na 2 SO 3 +NaOH 225 225 Water 214 Coarse Aggregate 1100 1190 1125 Fine Aggregate 550 595 563 Superplasticizer 6 9 3 Slag based GPC (SGPC), fly ashbased GPC (FAGPC) and OPC concretes were cast for theMechanical and durability properties of fly ash and slag When 10% of the cement content was replaced by fly ash and slag, there was a critical drop in the strength of the CAM mixture with a UCS value of 028 and 026 MPa, respectively This result agrees with the findings from other research about the impact of fly ash and slag on the UCS of cement mortar at an early ageEvaluation of the Effect of Fly Ash and Slag on the
Influence of admixture and watercement ratio on hydration
This paper designed 3 gradients of watercement ratio (050, 042 and 034), 3 kinds of admixtures (lithium slag, fly ash and steel slag) and 2 contents (20% and 60%); the ratio of cementitious material to sand was 1:25, and then, molding specimen accorded with the mix of mortar in the triple mold and the mechanical properties of mortar were Slag cement does not contain carbon and therefore should not cause fluctuations in air content Slag cement is also compatible with pozzolans such as fly ash or silica fume The percentage of slag cement to use for maximum strength development is usually between 40 and 50 percentslag cement proportioning[10] J Xie and O Kayali, "Effect of initial water content and curing moisture conditions on the development of fly ashbased geopolymers in heat and ambient temperature," Construction and Building Materials, 2014 [11] AO S, "Durability of concrete incorporating GGBS activated by waterglass," Constr Build Mater, vol 22, p 2059, 2008Effect of Alkaline Activator, Water, Superplasticiser and
Study of Strength Properties of Concrete by Partial
“Study of Strength Properties of Concrete by Partial Replacement with Fly Ash and Copper Slag in Cement And Fine Aggregate” G Swathi1, G Dinesh 2 1 Assistant Professor, Civil Engineering Department, Aditya Engineering College, Surampalem, AP 2Assistant Professor, Civil Engineering Department, Aditya Engineering College, Surampalem, AP Abstract For every ton of resCopper slag If sources of fly ash and bottom ash are within 100 and/or 500 miles of the LEED project, potential points may apply (MR) Option 2 Environmentally Preferable Products: (100% postconsumer and/or 50% preconsumer) This credit is awarded if concrete consists of at least 30% fly ash, slag, or other cement substitute and/or 50% recycled content orFly Ash Application of Slag–Cement and Fly Ash for Strength Development in Cemented Paste Backfills Yue Zhao , Amin Soltani * , Abbas Taheri *, Murat Karakus and An Deng indicated an optimum water content of wopt = 87% and a maximum dry unit weight of g dmax = 202 kN/m3, which are both on par with that reported for naturalApplication of Slag–Cement and Fly Ash for Strength
Fly ash, slag composite cement Achieving the lowest
COVER STORY Fly ash, slag composite cement Achieving the lowest solid wastescoprocessing, the % ash content andwaste ash compositions should be monitored, higher fluctuations, affect kin performance and with water (Fig 1 and 2) The optimum quantity ofGypsum (%SO3usage)Electromagnetic (EM) shielding has become an important aspect in the modern world as the increased usage of electronic devices has a profound effect on the risk of EM pollution within the atmosphere and the harmful effects of EM on humans In the recent decade, there has been an increased number of research focusing on using cementitious materials to be used as EM shielding materials"Effect of water to cement ratio, fly ash, and slag on When 10% of the cement content was replaced by fly ash and slag, there was a critical drop in the strength of the CAM mixture with a UCS value of 028 and 026 MPa, respectively This result agrees with the findings from other research about the impact of fly ash and slag on the UCS of cement mortar at an early ageEvaluation of the Effect of Fly Ash and Slag on the
Mechanical and durability properties of fly ash and slag
Cement 476 Fly Ash 500 Slag 500 Na 2 SO 3 +NaOH 225 225 Water 214 Coarse Aggregate 1100 1190 1125 Fine Aggregate 550 595 563 Superplasticizer 6 9 3 Slag based GPC (SGPC), fly ashbased GPC (FAGPC) and OPC concretes were cast for the Slag powder and fly ash can partially replace Portland cement in concrete In ordinary concrete, the amount of slag powder mix can reach 50% (in some special applications, such as mass concrete, the amount of slag powder mix can reach 80%) The fly ash content is generally controlled between 20% and 30%fly ash and slag powder differences and Features This paper designed 3 gradients of watercement ratio (050, 042 and 034), 3 kinds of admixtures (lithium slag, fly ash and steel slag) and 2 contents (20% and 60%); the ratio of cementitious material to sand was 1:25, and then, molding specimen accorded with the mix of mortar in the triple mold and the mechanical properties of mortar were Influence of admixture and watercement ratio on
Use of Copper Slag and Fly Ash in High Strength Concrete
Introduction of fly ash gave better results than concrete containing 50% copper slag The strength has increased approximately 4% containing 18% fly ash and decreased with further replacements of cement with fly ash Whereas, workability got increased with further increase in fly ash content Therefore, it is recommended that 50% of copper slag “Study of Strength Properties of Concrete by Partial Replacement with Fly Ash and Copper Slag in Cement And Fine Aggregate” G Swathi1, G Dinesh 2 1 Assistant Professor, Civil Engineering Department, Aditya Engineering College, Surampalem, AP 2Assistant Professor, Civil Engineering Department, Aditya Engineering College, Surampalem, AP Abstract For every ton of resCopper slag Study of Strength Properties of Concrete by Partial If sources of fly ash and bottom ash are within 100 and/or 500 miles of the LEED project, potential points may apply (MR) Option 2 Environmentally Preferable Products: (100% postconsumer and/or 50% preconsumer) This credit is awarded if concrete consists of at least 30% fly ash, slag, or other cement substitute and/or 50% recycled content orFly Ash