Physical durability

Part 1 of ebook "CONCREEP 10: Mechanics and physics of creep, shrinkage, and durability of concrete and concrete structures" provides readers with contents including: interaction of concrete creep, shrinkage and swelling with water, hydration, and damage, nano-macro-chemo; shrinkage due to colloidal force interactions; influence of aggregate restraint on volume changes, experiments and modelling; aging and deterioration of concrete structures, learning from the past, assessing the present, and predicting the future; science or magic; the meso-scale texture of cement hydrate gels, out-of-equ...

803p mothoiphong 28-06-2024 2 1   Download

Part 2 of ebook "CONCREEP 10: Mechanics and physics of creep, shrinkage, and durability of concrete and concrete structures" provides readers with contents including: steel corrosion in reinforced concrete mechanisms, assessment, measures, and forecast models; cracking behaviors caused by the corrosion of reinforcing bars in rc columns; evaluating the performance of recycled aggregate concrete; nanotechnology applied to concrete; towards the next generation of standards for the service life of cement-based materials and structures mini-symposium of COST action TU1404; microstructure and mic...

831p mothoiphong 28-06-2024 1 1   Download

This article presents the results of a study that evaluated the effects of using sea sand with varying contents of chloride ions on the properties of concrete, including physical and mechanical properties as well as durability.

16p viengels 25-08-2023 7 4   Download

In this study, a strategy was adopted to enhance the use of ramie fibers as raw material for isolation of cellulose nanofibers (CNFs). Ramie pulp was produced by alkaline organosolv followed by bleaching. CNFs were produced by mechanical defibrillation, and films were fabricated via casting.

9p vicedric 08-02-2023 1 1   Download

The most valuable timber of the world i.e. teak (king of timber) was widely used due to its durability, physical and aesthetic property. It has a high demand in international market and distributed throughout India and Southeast Asia. In addition, there are huge gap between demand and supply of industrial timber in India. This can be fulfilled by the teak plantation with agroforestry systems.

7p cothumenhmong9 18-01-2021 11 2   Download

The adult plant stem rust resistance gene Sr2 was introgressed into hexaploid wheat cultivar (cv) Marquis from tetraploid emmer wheat cv Yaroslav, to generate stem rust resistant cv Hope in the 1920s. Subsequently, Sr2 has been widely deployed and has provided durable partial resistance to all known races of Puccinia graminis f. sp. tritici.

11p viminato2711 22-05-2020 9 0   Download

Physical and mechanical properties of seven ancient clay brick samples of Kathmandu valley consisting of quartz, feldspars, spinel, margarite, muscovite type of mica mineral and hematite were studied using ASTM standards. All the brick samples used in this study have the water absorption, apparent porosity and bulk density in the range of 10-28 percent, 17-33 percent and 1.2-1.8 g/cm3 , respectively, while the compressive strength of all the brick samples is found to be in the range of 5-23 MPa.

18p nguathienthan1 24-11-2019 25 1   Download

The use of polymer-modified mortar and concrete (PMM and PMC) is investigated to improve the durability of concrete sewer pipes. The aim of the research is to ameliorate the resistance of concrete to biogenic sulphuric acid attack through polymer modification. Prior to the durability tests, experimental research is carried out to reveal the influence of polymer modification on the physical and mechanical properties of mortar and concrete...

10p christian2605 11-10-2019 19 0   Download

In what follows, we draw on these techniques to model contagion stemming from unexpected shocks in complex nancial networks with arbitrary structure, and then use numerical simulations to illustrate and clarify the intuition underpinning our analytical results. Our framework explicitly accounts for the nature and scale of aggregate and idiosyncratic shocks and allows asset prices to interact with balance sheets.

182p mebachano 01-02-2013 51 5   Download

The store of value function is redundant in a time-0 auction and any durable asset dominates money in sequential trading versions of the auction. Strictly speaking the unit of account function is also not required but obviously selecting a numeraire would reduce the computations required even for the time-0 auction. The point is simply that given the computing power underlying the auction the unit of account function is not a necessary feature of the economy. Any commodity can act as the unit of account even one with no physical existence, but jam is as good a numeraire as any –the...

28p taisaocothedung 09-01-2013 39 2   Download

The feature of polyimides and other heterocyclic polymers are now well-established and used for long term temperature durability in the range of 250 - 350'C. This book will review synthesis, mechanisms, ultimate properties, physico-chemical properties, processing and applications of such high performance materials needed in advanced technologies. It presents interdisciplinary papers on the state of knowledge of each topic under consideration through a combination of overviews and original unpublished research.

256p crius75 02-01-2013 136 49   Download

Educational stakeholders, designers and administrators make buying decisions for furniture based on many factors. Cost, durability, functionality, safety, and aesthetics represent just a few of the many practical considerations. While these issues will always be important, the role that furniture plays in creating positive, high performance learning environments has gained greater recognition in recent years.

25p connhobinh 10-12-2012 37 4   Download

An Issue that many have had to deal with over the years is how and where to get an inexpensive implement for effective physical training. Now I’m not going to drag you along with a great history of how the Medicine ball was originally used by the military for that exact purpose. What I will tell you is that since then the simple inexpensive Medicine ball has come to cost a small fortune. No longer! Now an inexpensive and durable ball can be manufactured for only a few dollars a little bit of effort and a great ...

7p quaivatdo 15-11-2012 41 0   Download

The chemical process industries (CPI), petroleum and allied industries apply physical as well as chemical methods to the conversion of raw feedstock materials into salable products. Because of the diversity of products, process conditions and requirements, equipment design is often unique, or case specific. The prime requirement of any piece of equipment is that it performs the function for which it was designed under the intended process operating conditions, and do so in a continuous and reliable manner.

195p beobobeo 01-08-2012 82 17   Download

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Natural durability, physical and mechanical properties of Atlas cedar (Cedrus atlantica Manetti) wood from Southern Italy...

8p toshiba6 05-10-2011 45 2   Download

Bhushan, B. “Boundary Lubrication Studies Using Atomic Force/Friction ...” Handbook of Micro/Nanotribology. Ed. Bharat Bhushan Boca Raton: CRC Press LLC, 1999 © 1999 by CRC Press LLC Boundary Lubrication Studies Using Atomic Force/Friction Force Microscopy Bharat Bhushan 8.1 8.2 8.3 8.4 Introduction Nanodeformation, Adhesive Forces, and Molecular Conformation Boundary Lubrication Studies Liquid Lubricants • LB and Self-Assembled Monolayers 8 Closure References 8.1 Introduction Boundary films are formed by physical adsorption, chemical adsorption, and chemical reaction.

15p medinova 26-10-2010 60 6   Download

Boundary films are formed by physical adsorption, chemical adsorption, and chemical reaction. The physisorbed film can be either monomolecular or polymolecular thick. The chemisorbed films are monomolecular, but stoichiometric films formed by chemical reaction can have a large film thickness. In general, the stability and durability of surface films decrease in the following order: chemical reaction films, chemisorbed films, and physisorbed films. A good boundary lubricant should have a high...

15p hungnhat 08-12-2009 56 9   Download