Cement Dictionary Of Terms
Cement Dictionary Of Terms Like Every Other Branch Of Human Activity, The Concrete Industry Has Developed A List Of Terms Of Special Meaning. With The Usage Of These Terms, The More Common Of Which Are Given Below, The Student Of Cement And Concrete Should At The Very Outset Make Himself ...
Cement Tile Machines
Cement Tile Machines Cement Tile Have Abundantly Demonstrated Their Efficiency And Durability For Drainage Pur Poses. Their Permeability Is A Feature That Can Be Controlled By The Manufacturer. Tile Can Be Made Porous So As To Give Effective Drainage Throughout Their Length; Or They Can Be Made Water-tight So As ...
Cementing Materials
Cementing Materials In The Making Of Concrete, The Principal Ce Menting Materials Used Are Common Lime, Hy Draulic Lime, Natural Cement, Slag Cement Or Pozzuolana (sometimes Spelled Puzzolan Ce Ment), Portland Cement, And Keene's Cement. Common Lime The Old-fashioned Lime Of Commerce Used In Making Mortar For Ordinary Plaster Work, ...
Cements
Cements Kinds Of Cement. Most Of The Cement Now Employed In Constructive Work Falls Under One Or The Other Of Two Main Heads—natural Cement And Portland Cement, The Latter Being Much The More Extensively Used, Especially Where Great Strength And Absolute Reliability As To Uniform Quality Are Required. In Some ...
Choice Of Concrete Mixtures
Choice Of Concrete Mixtures Having Learned How To Select Good Materials And How To Proportion Them So As To Obtain Con Crete Of Any Desired Strength Up To Maximum, The Next Important Requirement For The Concrete Worker Is That He Shall Know How To Decide Upon The Proper Mixture To ...
Concrete Aggregates
Concrete Aggregates While Cement, In Concrete Construction, Is A Very Important Element, Nevertheless The Other Materials With Which It Is Combined, And The Manner Of Proportioning, Mixing, And Depositing Them, Are Also Factors Of Prime Importance, And Should Be Submitted To The Same Carefulness Of Inspection, Preliminary Testing, And Intelligent ...
Concrete Block Machines
Concrete Block Machines. Concrete Blocks In Various Forms Are Coming To Be Recognized More And More As An Important Factor In Building Construction. There Are Com Paratively Few Buildings Erected To-day Into The Construction Of Which Concrete Moulded Shapes, In Some Form Or Other, Do Not Enter. Even Where The ...
Concrete Mixers
Concrete Mixers Concrete Mixers Comprise Two General Classes —continuous Mixers And Batch Mixers. With The "continuous" Type, The Feeding Of The Materials, The Mixing, And The Discharge Of The Concrete Form One Continuous Process Which May Be Car Ried On Indefinitely. With "batch" Mixers, On The Other Hand, Only Certain ...
Crushers And Grinders
Crushers And Grinders In The Processes Of Grinding And Crushing, The Expenses Incurred Through Consumption Of Power, Necessity For Repairs, And Delays Result Ing In Loss Of Output, Are Ordinarily Excessive. In The Case Of A Grinder, The Direct Loss Due To Excessive Wear Of Parts Often Results In A ...
Depositing Concrete
Depositing Concrete Concrete Should Not Be Allowed To Stand Un Used For Any Considerable Length Of Time After Being Mixed, But Should Be Placed Or Deposited At Once. In No Case Should This Be Delayed Be Yond 20 To 30 Minutes After The Cement Is First Wet. If Dumped Into ...
Dients
Dients The Importance Of A Careful Grading Of Coarse And Fine Ingredients Has Already Been Empha Sized, And The General Principles Laid Down Which Should Govern The Selection Of Aggregates For Any Proposed Work. It Is Equally Essential, For The Sake Of Econ Omy And Efficiency, That The Concrete Worker ...
Historical Sketch
Historical Sketch No One Knows When, Where, Or By Whom Con Crete Was Invented Or First Employed. Its Use As A Material Of Construction Dates Back To The Dim Antiquity Of Prehistoric Times, And Examples Of The Ancient Craft Have Come Down To Us With Practically Undiminished Strength Which Have ...
Hoists Engines
Engines, Hoists, And Elevators All The Common Types Of Power Driving— Steam, Gasoline, Electricity—are Adaptable To The Operation Of Concreting Machinery. In The Ma Jority Of Cases, However, Steam Engines Or Gaso Line Engines Are Employed As The Sources Of Mov Rig. 21. "eureka" Single Friction Drum Hoist. Ing Power. ...
Materials And Manufacture Of
Materials And Manufacture Of Concrete What Concrete Is. Concrete Is An Artificial Or Manufactured Stone Consisting Of Aggregates (sand, Gravel, Etc.) And Cementing Materials, Mixed Together With Water. The Ingredients To Be Used, As Well As Their Proportions, Vary With The Kind Of Work For Which The Concrete Is In ...
Methods Of Waterproofing
Methods Of Waterproofing The Various Methods Devised For The Water Proofing Of Concrete May Be Classified Under Two Broad Divisions As Follows: 1. Integral Methods, In Which The Mass Of The Con Crete Itself Is Waterproofed Prior To Setting. 2. Methods Of External Or Surface Treatment, In Which A Protective, ...
Miscellaneous Data
Miscellaneous Data Portland Cement Industry. A Graphic Illus Tration Of The Remarkable Growth Of The Port Land Cement Industry In The United States, As Compared With The Advances Made In Other In Dustrial Lines, Is Given In The Accompanying Dia Gram (fig. 28), Which Is Based On A Chart Pre ...
Mixing Of Concrete
Mixing Of Concrete The Methods Of Mixing Concrete Vary Greatly In Detail, But May Be Broadly Divided Under Two Heads—mixing By Hand And Mixing By Ma Chinery. A Further Distinction Is Made Among Mixing Processes, Which May Be Either Batch Mixing Or Continuous Mixing. Batch Mixing, As The Name Implies, ...
Portland Cement
Portland Cement In 1908, Portland Cement Was Manufactured In At Least Twenty-five Of The Forty-six States Of The Union. The Raw Materials Used By The Different Plants Vary Considerably, So That No Absolutely Universal Rule Can Be Laid Down For The Selection Or Proportioning Of The Ingredients From Which Portland ...
Screens And Separators
Screens And Separators Under This Head We Find A Considerable Num Ber Of Devices Employed For Separating And Grad Ing The Coarser And Finer Particles In Natural Sand And Gravel And In Crusher-run Material. The Simplest Form Of Screen, Commonly Used In Small Operations, Consists Merely Of A Large, Oblong ...
Specifications For Reservoir Waterproofing
Specifications For Reservoir Waterproofing After The First Layer Of Concrete Has Become Set And Is Perfectly Dry, All Dust Must Be Carefully Brushed Off; And On This Dry, Clean Surface, And Also In Joints Between Blocks, Shall Be Applied, With Ordinary Paint Brushes, One Heavy Coat Of Primer Paint, Manufactured ...
Specifications For Waterproofing Concrete
Specifications For Waterproofing Concrete In Subways After Concrete Is In Place And Firmly Set, Surface Should Be Brushed So As To Be Free From Dust, Then Painted With Primer Paint, Manufactured By (or Any Paint Equal Thereto) ; This Should Beapplied Cold With A Brush. After Paint Has Become Dry, ...
Specifications For Waterproofing Floors
Specifications For Waterproofing Floors Of Steel And Concrete Bridges Method. Bridge Floor (whether Steel Or Concrete) Should Be Perfectly Clean And Dry And Free From All Dust, Oil, Paint, Rust, And Scale. Floor Should Then Be Given A Coat Of Primer Paint, Applied Cold With Paint Brushes. If Work Is ...
Standard Specifications For Cement
Standard Specifications For Cement The Requirements Which A Cement Must Meet In Order To Be Recognized As Of "standard" Quality, Are Outlined By The Committee On Standard Specifications For Cement, Of The American Society For Testing Materials, In Substance As Follows: General Conditions. All Cement Shall Be Inspected—either At The ...
Strength Of Concrete
Strength Of Concrete Ice Only An Inch Thick Covering A Stream Or Lake Will Carry Safely The Weight Of A Loaded Team, Whereas A Covering Of Snow A Foot Thick Will Not Support The Weight Of A Child. What Makes The Difference In Strength Between The Ice And The Snow? ...
Table Xiv
Table Xiv Materials For One Cubic Yard Of Concrete Quantities Per Cubic Yard. Any Table Giv Ing The Quantities To Be Used In Mixing Concrete By The Cubic Yard, Can Be Only Approximate. Varying Fineness In The Sand, Or Varying Com Pactness In The Concrete Due To Ramming, May Affect ...
Testing Of Cement
Testing Of Cement The Most Accurate And Thorough Tests Of Ce Ment Are Those Which Are Made In Professional Testing Laboratories. These, However, Are Not Always Available; And Fortunately They Are Not Always Necessary. In Large Constructions Such As Public Works, And In Smaller Structures Where Very Important Values Are ...
The Dawning Age Of
The Dawning Age Of Cement Concrete Has Come To Be A Dominating Factor In The Building World. Its Invasion Of The Mod Ern Structural Field, And Triumphal Progress Therein, Have Already Wrought A Revolution; And Its Present Widespread And Rapidly Increasing Application To Construction Work Of All Kinds Is The ...
Tools And Machinery For
Tools And Machinery For Concrete Work With The Skill And Ingenuity Characteristic Of American Enterprise In General, Designers And Inventors Have Developed A Great Variety Of Spe Cial Tools, Machines, And Devices For Accomplish Ing The Different Operations Necessary In The Mix Ing, Handling, And Working Of Concrete. In Addi ...
Water For Concrete
Water For Concrete Water Has Two Functions To Perform In Con Crete Work. Its Presence Is Necessary To Develop The Hydraulic Activity Of The Cement. Aside From This, The Part It Plays In Concrete Is Merely That Of Rendering The Mass Plastic And Insuring A Thorough Mixture. It Does Not ...
Waterproofing Of Concrete
Waterproofing Of Concrete The Development Of A Satisfactory Method Of Waterproofing Concrete Is One Of The Most Diffi Cult And Complicated Problems That Have Exer Cised The Minds Of Engineers Since This Material First Came To Be Extensively Used As A Factor In Modern Construction. In Its Entirety, The Prob ...