tightness testing of environmental engineering concrete structures
advanced physicochemical treatment technologies volume 5 handbook of environmental engineering
... 20 60 5. 5 Primary + (WAS + FeCl 3 ) 1 .5 15 45 3 .5 (Primary + FeCl 3 ) + WAS 1.8 15 45 4 WAS 1 10 30 3 WAS + FeCl 3 1 10 30 2 .5 Digested primary + WAS 4 20 60 10 Digested primary + 4 15 45 8 (WAS ... and Lawrence K. Wang 50 5 1. Introduction 50 5 2. Operating Characteristics 50 5 3. SDWA Implementation 50 6 4. Filtration Treatment Technology Overview 50 6 5. Common Types...
Ngày tải lên: 01/04/2014, 11:43
encyclopedia of environmental science and engineering, fifth edition
... first term on the right-hand side represents the rate of formation of particles of volume v due to coagulation, and the second term that rate of loss of particles of volume v by coagulation ... (schematic) as function of time of day, over city and country. 50 40 30 20 0 5 10 15 20 Time of day 100-T, (%) FIGURE 7 Concentrations of air pollution (100-T%), as function...
Ngày tải lên: 01/04/2014, 11:44
environmental bioengineering handbook of environmental engineering volume 11
... ã Professor, Department of Environmental Science and Engineering, Fudan University, Shanghai, China S TEPHEN TIONG-LEE TAY, Ph.D. ã Associate Professor, School of Civil and Environmental Engineering, ... Ph.D. ã Professor, Graduate School of Life Science and System Engineering, Kyushu Institute of Technology, Kitakyushu, Fukuoka, Japan K UAN YEOW SHOW, Ph.D. ã Associate Profess...
Ngày tải lên: 01/04/2014, 11:44
environmental biotechnology handbook of environmental engineering volume 10
... the degree of abatement achieved? This book is one of the volumes of the Handbook of Environmental Engineering series. The principal intention of this series is to help readers formulate answers ... presented in these handbooks is a logical step in the evolution of environmental engineering. Treatment of the various engineering systems presented will show how an eng...
Ngày tải lên: 01/04/2014, 11:44
code requirements for environmental engineering concrete structures (aci 350-01) and commentary (aci 350r-01)
... document. CODE REQUIREMENTS FOR ENVIRONMENTAL ENGINEERING CONCRETE STRUCTURES (ACI 350-01) AND COMMENTARY (ACI 350R-01) REPORTED BY ACI COMMITTEE 350 ACI Committee 350 Environmental Engineering Concrete ... intent. It is the function of the commentary to fill this need. CODE REQUIREMENTS FOR ENVIRONMENTAL ENGINEERING CONCRETE STRUCTURES (A...
Ngày tải lên: 24/10/2014, 15:45
control of cracking in concrete structures
... 224R-11 3.1—Introduction 3.2—Cause of cracking due to drying shrinkage 3.3—Drying shrinkage 3.4—Factors controlling drying shrinkage of concrete 3.5 Control of shrinkage cracking 3.6—Shrinkage-compensating ... in ACI 209R. Cracking due to drying shrinkage can never be eliminated in most structures. This chapter cov- ers cracking of hardened concrete due to drying shr...
Ngày tải lên: 24/10/2014, 15:46
control of deflection in concrete structures
... deflection of a two- way reinforced concrete slab. Chapter 5, “Reducing Deflection of Concrete Members,” gives practical and remedial guidelines for improving and controlling the deflection of ... strain in the extreme com- pression fiber of a concrete element (0.003 in. /in. ) strain at first cracking load strain in prestressed reinforcement at ultimate flexure u...
Ngày tải lên: 24/10/2014, 17:25
control of deflection in concrete structuresstate-of-the-art report on fiber reinforced plastic (frp) reinforceme
... in reinforcement continues to increase with increasing strain until the reinforcement ruptures. The only condition of known forces in an FRP reinforced beam is the balanced condition where the concrete ... concrete; concrete construction; design; external reinforcement; fibers; fiber reinforced plastic (FRP); mechanical properties; polymer resin; prestressed concrete; rein...
Ngày tải lên: 24/10/2014, 17:25
design and construction of circular prestressed concrete structures with circumferential tendons
... 2—Materials, p. 373R-97-5 2.1 Concrete 2.2—Shotcrete and filler materials 2.3—Admixtures Design and Construction of Circular Prestressed Concrete Structures with Circumferential Tendons Reported by ... the wall. 1.2—Objective The objective of this report is to provide guidance in the design and construction of circular prestressed concrete structure...
Ngày tải lên: 24/10/2014, 17:26
causes, evaluation and repair of cracks in concrete structures
... 201.2R). 1.3.4 Weathering-The weathering processes that can cause cracking include freezing and thawing, wetting and drying, and heating and cooling. Cracking of concrete due to natural weathering is usually ... in concrete cover will reduce settlement cracking. 1.3-Cracking of hardened concrete 1.3.1 Drying shrinkage-A common cause of cracking in concrete is rest...
Ngày tải lên: 24/10/2014, 17:37
guide for the design and construction of fixed offshore concrete structures
... B.11- Other factors criteria PREFACE Concrete structures have been used in the North Sea and other offshore areas of the world. With the rapid expansion of knowledge of the behavior of concrete structures ... for consideration by the designer. The design of offshore structures requires much creativity of the designer, and it is intended that th...
Ngày tải lên: 24/10/2014, 17:40
finite element analysis of fracture in concrete structures state of the art
... report describes the state -of- the- art of finite element analysis of fracture in concrete. The two dominant techniques used in finite element modeling of fracture the dis- crete and the smeared approaches—are ... 446.3R-32 CHAPTER 1—INTRODUCTION In this report, the state -of- the- art in finite element modeling of concrete is viewed fro...
Ngày tải lên: 24/10/2014, 21:58
guide to quality control and testing of high-strength concrete
... 90 to 109 97 2 91 to 107 100 7 97 to 100 99 363.2R-1 7GUIDE TO QUALITY CONTROL AND TESTING OF HIGH-STRENGTH CONCRETE American Concrete Institute 116R Cement and Concrete Terminology 201.2R Guide ... (1994) and Ottosen (1984). 363.2R-1 5GUIDE TO QUALITY CONTROL AND TESTING OF HIGH-STRENGTH CONCRETE A comprehensive internal quality control...
Ngày tải lên: 24/10/2014, 21:59
seismic design of liquid-containing concrete structures
... 350 Environmental Engineering Concrete Structures SEISMIC DESIGN OF LIQUID-CONTAINING CONCRETE STRUCTURES 350.3/350.3R-1 Seismic Design of Liquid-Containing Concrete Structures (ACI 350.3-01) and Commentary ... Provi- sions for Seismic Design, ” in order to provide a set of thorough and comprehensive procedures for the seismic analysis and design of all...
Ngày tải lên: 24/10/2014, 22:00
tightness testing of environmental engineering concrete structures
... Zoltanetzky Tightness Testing of Environmental Engineering Concrete Structures (ACI 350.1-01) and Commentary (350.1R-01) REPORTED BY ACI COMMITTEE 350 ACI Committee 350 Environmental Engineering Concrete ... American Concrete Institute Committee 350, Envi- ronmental Engineering Concrete Structures, recognized the need for standardized procedures of testing of...
Ngày tải lên: 24/10/2014, 22:01