assessment of cement and concrete performance under sulfate attack

... magnesium-sodium sulfate attack in plain and blended cements Journal of Materials in Civil Engineering 6(2), 201-222 Shanahan, N., Zayed, A., 2007 Cement composition and sulfate attack Part I Cement and Concrete ... frost resistance of concrete with and without steel fiber reinforcement Cement and Concrete Research 32(1), 31-34 the frost resistance of concrete and its mechanism Journal of the Chinese Ceramic ... diffusion of sulfate ions in concrete On the other hand, sulfate attack accelerates the formation of microcracks in concrete, which leads to more severe damage under freeze-thaw cycles The rate of damage

Ngày tải lên: 17/09/2018, 09:30

... https://doi.org/10.20546/ijcmas.2019.801.027 Performance of Chickpea-Mustard Intercropping on Yield and Economics of Chickpea and Mustard Crop under Different Fertility Management and Various Row Combinations ... kg/ha) and organic carbon (0.38% and 0.42%), medium in available phosphorus (12.25 and 13.20 kg/ha) and high in potassium (265.00 and 267 kg/ha) in Ist and IInd year, respectively The reaction of ... intercropping under various row combinations Twenty four treatment combinations and consisted of three levels of fertility management (75% RDF, 100% RDF and 125% RDF for both crops) and eight row

Ngày tải lên: 13/01/2020, 22:53

... differences of okra crop under different types of mulching such as coir, polythene, and also without mulching (control) Materials and Method The present investigation, “Comparison of yield and growth performance ... C.M and Dunsin, O 2017 Response of Okra Aniekwe N L 2015 Comparative Effects of Organic and Plastic Mulches on the Environment, Growth and Yield of Okra International Journal of Science and ... Comparison of Growth and Yield Performance of Okra Crop under Mulching Systems P Akhila † , S Meena † , CH N V Srinivasa Rao † , D Kumar † , B Gopi † and V Tejaswini † Department of Agricultural

Ngày tải lên: 09/07/2020, 01:45

... Group, LLC Trang 2206 Integrated Assessment of Health and Sustainability of AgroecosystemsaPPendIx 1: QuestIonnaIRe used to caRRy out a census of all tHe land-use unIts In tHe VIllaGe Trang ... Group, LLC Trang 4208 Integrated Assessment of Health and Sustainability of AgroecosystemsaPPendIx 2: QuestIonnaIRe used foR IndIcatoR measuRement at tHe land-use unIt leVel Trang 5© 2009 by

Ngày tải lên: 18/06/2014, 19:20

... the number of nodes and elements was 41098 and 29436 (Modular) and 33270 and 23744 (Monoblock) For Construct B, the number of nodes and elements was 52121 and 39423 (Modular) and 61577 and 45847 ... allow for ease-of-comparison to future FEand experimental studies using this often-used commer-cially-available synthetic bone, and the ease-of-storage and lack of degradation of the synthetic ... cementless manner Finite element (FE) models General approach FE models of the Modular and Monoblock implants were developed, and strain and stress maps were generated for two constructs, A and

Ngày tải lên: 20/06/2014, 04:20

... presence of insertional changes and tenosynovitis One hand was assessed by means of MRI for the aforementioned changes X-rays of both hands and feet were assessed for bone erosions and proliferations ... Projection radiography X-ray of hands and feet in a posterior-anterior projection was performed within a month of the US X-rays of both hands and feet (2nd–5th MCP, PIP, DIP, and MTP joints) were assessed ... (6 of 16) and Wakefield and colleagues [16] in 1% (1 of 100) of the examined MCP joints Five of the erosion-like changes found in our study were located at the radial or ulnar side of the 2nd and

Ngày tải lên: 09/08/2014, 10:21

... The authors thank Professors William Brett and Jim Hughes of the Department of Life sciences and Tista Induction of autoreactive anti-DNA Ab responses Figure 5 Induction of autoreactive anti-DNA ... potential of both phytol and PHIS-01 to that of some commonly used adju-vants (Complete and incomplete Freund's adjuadju-vants, TiterMax, Ribi's adjuvant system, and Alhydrogel) Since phytol and PHIS-01 ... TiterMax and Alum were ineffective (Fig 1B) Effects of PHIS-01 and other adjuvants on induction of IgG subclasses The effectiveness of a vaccine formulation depends to a large extent on the type of

Ngày tải lên: 11/08/2014, 10:23

... H Kindahl5 1Department of Obstetrics and Gynaecology, 2Department of Reproductive Biology, 3Department of Infectious Diseases, Unit of Veterinary Microbiology, Faculty of Veterinary Medicine, ... Acta vet scand 2003, 44, 131-143 Assessment of Early Postpartum Reproductive Performance in Two High Producing Estonian Dairy Herds By K.Kask1, J Kurykin2, R Lindjärv3, A Kask4 and H Kindahl5 ... 4Veterinary Centre of Tartu County, Tartu, Estonia, 5Department of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, Centre for Reproductive Biology in Uppsala, Swedish University of Agricultural

Ngày tải lên: 12/08/2014, 15:20

... influenced by the degree of compaction of the concrete, and likely to be influenced by the degree of compaction of the concrete, and even by the arrangement of particles of particles of aggregate, in ... the elastic and plastic theories for bending and shear of cross-section of beams and columns of a single material, such as structural steel, and to have some knowledge of reinforced concrete No ... concrete No previous knowledge is assumed of the concept of shear connection within a member composed of concrete and structural steel, nor of the use of profiled steel sheeting in composite slabs

Ngày tải lên: 27/03/2015, 16:44

... desired objectives of the course The purpose of this study is to reveal the findings and information about the coursebook evaluation from the perspectives of students and teachers of ICTU With this ... understanding and supports for me throughout the preparation and development of the thesis ii ABSTRACT The ESP coursebook ―English for Information Technology I‖ compiled by four teachers of English of ICTU ... 60.140.111 Supervisor: Prof Nguyen Hoa Hanoi, 2014 DECLARATION I – Tran Minh Thanh, a candidate for the Degree of Master of Arts (TEFL) hereby state that I accept the requirements of the University

Ngày tải lên: 15/07/2015, 16:39

... Prof. THAM Chen Khong, Prof. Chua Kee Chaing, Prof. Ge Shuzhi, Dr. Soh Wee-Seng, Prof. Hang Chang Chieh, and Dr. Xiao Wendong, for their professional advices and comments on both my research and ... capture, understand and utilize end-user’s context information. Secondly, we design and implement two applications of the User-Context Module to demonstrate its operation, implementation and performance. ... controL, and Optimization for the Future Internet,” in Proc. ICC, (Glasgow, Scotland), June 2007. 127 Appendix A Proof of Lemma 1, and 3. Lemma 1: Under the proposed framework with the given WUA and

Ngày tải lên: 09/09/2015, 17:52

... Trang 1ASSESSMENT OF OSTEOGENESIS AND CYTOTOXICITY OF IMPLANTS WITH hESC PROGENIES WONG KEE HAU NATIONAL UNIVERSITY OF SINGAPORE 2012 Trang 2ASSESSMENT OF OSTEOGENESIS AND CYTOTOXICITY OF IMPLANTS ... knowledge and understanding of stem cells is so enormous and being so helpful Ms Li Lu Lu for her help with the draft and invaluable suggestions 6 Last but not least, Mr Chan Swee Heng and Ms Angelin ... enhance the understanding of differentiation patterns and bone formation capacity of hESCs31 The following were determined: (1) the temporal pattern of osteoblastic differentiation of human embryonic

Ngày tải lên: 30/09/2015, 14:23

... incidence of this disease occurs in the fifth decade of life and it is rare in those below 25 years of age [28] In this pbc2 dataset, there are a total of 36 males and 276 females while the minimum and ... reviewed in the two articles above and will cover different methods of parameter estimation in the joint modeling of longitudinal and survival data One of the earliest and most common approaches in ... first stage of the approach The latter studied and compared the two-stage approach to a nạve approach where the longitudinal profile of the covariate was not modeled and the observed value of the

Ngày tải lên: 02/10/2015, 17:15

... of the steel (rust) tends to occupy much more volume, leading to spalling of concrete cover and section loss of rebar Due to the large quantity of RC bridges reaching this condition, repair and ... included: Class (prime candidate), Class (moderate candidate), and Class (low candidate Based on the proposed classification system, a Class candidate bridge was chosen and Phase II of the project was ... effort to understand how PennDOT’s load rating and analysis program (BAR7) worked Phase III includes the implementation of the FRP strengthening system and poststrengthening load testing and assessment...

Ngày tải lên: 12/05/2017, 22:36

... content of esterified and etherified p-coumaric acids is 3.78 and 1.72% respectively, and the content of esterified and etherified ferulic acid is 1.02 and 2.2%, respectively [23] Dimerization of ... economic, and energetic costs and benefits of biodiesel and ethanol biofuels PNAS 2006, 103(30), 11206-11210 [6] Taherzadeh M.J., Kamiri K Pretreatment of lignocellulosic wastes to improve ethanol and ... conversion of lime-treated wheat straw into bioethanol: quality assessment of bioethanol and valorization of side streams by anaerobic digestion and combustion Biotechnology for Biofuels 2008,...

Ngày tải lên: 05/09/2013, 15:28

... portland -cement concrete, the binder is a mixture of portland cement and water, with or without admixtures concrete, aerated—see concrete, foamed and concrete, cellular concrete, aluminate concrete ... volume of concrete, mortar, or grout cement factor—see cement content (preferred term) cement gel—see gel, cement cement gun—see gun, cement cement kiln—see kiln, cement cement paint—see paint, cement ... burning process; CEMENT AND CONCRETE TERMINOLOGY 116R-11 cement cement, expansive, Type M—interground or blended mixtures of portland cement, calcium-aluminate cement, and calcium sulfate suitably...

Ngày tải lên: 16/03/2014, 01:20

... Standards and Health: Assessment of risk and risk management for water-related infectious disease This page intentionally left blank Water Quality Guidelines, Standards and Health: Assessment of ... exposure assessment is an important input to both the assessment of risk and to risk management Exposure assessment is a formal component of the risk assessment process (Chapter 8) Exposure assessment ... Harmonised assessment of risk and risk management: an overview 11 While the general public may prefer the idea of 'zero risk', in a world of limited resources and competing demands some idea of tolerable...

Ngày tải lên: 28/03/2014, 23:20

... history and context of five key areas of inquiry of this study: the place, product, people, politics, and programs (the 5P‟s); followed by a brief summary of previous allegations of human and labor ... history and development of the rubber sector in the country, and the impact of severe poverty and social and economic instability on the labor force and employment patterns The civil war and subsequent ... Exploratory Assessment of Living and Working Conditions, with Special Attention to Forced Labor 11 Tapping rubber trees The clearing of land, breeding in the nursery, and the weeding and pruning of fields...

Ngày tải lên: 31/03/2014, 09:21

... the cement, but rather the aggregate (i.e sand and rock) portion of concrete However fly ash is used as a cement replacement in concrete, and the nonenergy emissions of the replaced virgin cement ... Comparison of Recycling, Landfilling, and Incineration: A Review of Recent Studies”; Annual Review of Energy and the Environment 21:6:191-237 32 Microsoft Excel and Web-based versions of this tool ... of action by EPA • 1.4 The landfill recovery scenario is based on estimated recovery rates and percentages of waste disposed in landfills with no recovery, landfills with only flaring, and landfills...

Ngày tải lên: 31/03/2014, 13:20