Concrete Construction

Chapter I.--Methods and Cost of Selecting and Preparing

MATERIALS FOR CONCRETE. 1

~Cement:~ Portland Cement--Natural Cement--Slag Cement--Size and Weight of Barrels of Cement--Specifications and Testing. ~Sand:~ Properties of Good Sand--Cost of Sand--Washing Sand; Washing with Hose; Washing with Sand Ejectors; Washing with Tank Washers. ~Aggregates:~ Broken Stone--Gravel--Slag and Cinders--Balanced Aggregate--Size of Aggregate--Cost of Aggregate--Screened and Crusher Run Stone for Concrete--Quarrying and Crushing Stone--Screening and Washing Gravel.

Chapter Ii.--Theory and Practice of Proportioning Concrete. 25

~Voids:~ Voids in Sand; Effect of Mixture--Effect of Size of Grains--Voids in Broken Stone and Gravel; Effect of Method of Loading; Test Determinations; Specific Gravity; Effect of Hauling--Theory of the Quantity of Cement in Mortar; Tables of Quantities in Mortar--Tables of Quantities in Concrete--Percentage of Water in Concrete--Methods of Measuring and Weighing; Automatic Measuring Devices.

Chapter Iii.--Methods and Costs of Making and Placing

CONCRETE BY HAND. 45

Loading into Stock Piles--Loading from Stock Piles--Transporting Materials to Mixing Boards--Mixing--Loading and Hauling Mixed Concrete--Dumping, Spreading and Ramming--Cost of Superintendence--Summary of Costs.

Chapter Iv.--Methods and Cost of Making and Placing

CONCRETE BY MACHINE. 61

Introduction--Conveying and Hoisting Devices--Unloading with Grab Buckets--Inclines--Trestle and Car Plants--Cableways--Belt Conveyors--Chutes--Methods of Charging Mixers--Charging by Gravity from Overhead Bins; Charging with Wheelbarrows; Charging with Cars; Charging by Shoveling; Charging with Derricks--Types of Mixers; Batch Mixers; Chicago Improved Cube Tilting Mixer, Ransome Non-Tilting Mixer, Smith Tilting Mixer; Continuous Mixers; Eureka Automatic Feed Mixer; Gravity Mixers; Gilbreth Trough Mixer, Hains Gravity Mixer--Output of Mixers--Mixer Efficiency.

Chapter V.--Methods and Cost of Depositing Concrete

UNDER WATER AND OF SUBAQUEOUS GROUTING. 86

Introduction--Depositing in Closed Buckets; O'Rourke Bucket; Cyclopean Bucket; Steubner Bucket--Depositing in Bags--Depositing Through a Tremie; Charlestown Bridge; Arch Bridge Piers, France; Nussdorf Lock, Vienna--Grouting Submerged Stone; Tests of H. F. White; Hermitage Breakwater.

Chapter Vi.--Methods and Cost of Making and Using Rubble

AND ASPHALTIC CONCRETE. 98

Introduction--Rubble Concrete: Chattahoochee River Dam; Barossa Dam, South Australia; other Rubble Concrete Dams, Boonton Dam, Spier Falls Dam, Hemet Dam, Small Reservoir Dam, Boyd's Corner Dam; Abutment for Railway Bridge; English Data, Tharsis & Calamas Ry., Bridge Piers, Nova Scotia--Asphalt Concrete; Slope Paving for Earth Dam; Base for Mill Floor.

Chapter Vii.--Methods and Cost of Laying Concrete in

FREEZING WEATHER. 112

Introduction--Lowering the Freezing Point of the Mixing Water; Common Salt (Sodium Chloride):--Freezing Temperature Chart--Heating Concrete Materials; Portable Heaters; Heating in Stationary Bins; Other Examples of Heating Methods, Power Plant, Billings, Mont., Wachusett Dam, Huronian Power Co. Dam, Arch Bridge, Piano, Ill., Chicago, Burlington & Quincy R. R. Work, Heating in Water Tank--Covering and Housing the Work; Method of Housing in Dam, Chaudiere Falls, Quebec; Method of Housing in Building Work.

Chapter Viii.--Methods and Cost of Finishing Concrete

SURFACES 124

Imperfectly Made Forms--Imperfect Mixing and Placing--Efflorescence--Spaded and Troweled Finishes--Plaster and Stucco Finish--Mortar and Cement Facing--Special Facing Mixtures for Minimizing Form Marks--Washes--Finishing by Scrubbing and Washing--Finishing by Etching with Acid--Tooling Concrete Surfaces--Gravel or Pebble Surface Finish--Colored Facing.

Chapter Ix.--Methods and Cost of Form Construction 136

Introduction--Effect of Design on Form Work--Kind of Lumber--Finish and Dimensions of Lumber--Computation of Forms--Design and Construction--Unit Construction of Forms--Lubrication of Forms--Falsework and Bracing--Time for and Method of Removing Forms--Estimating and Cost of Form Work.

Chapter X.--Methods and Cost of Concrete Pile and Pier

CONSTRUCTION 151

Introduction--Molding Piles in Place; Method of Constructing Raymond Piles; Method of Constructing Simplex Piles; Method of Constructing Piles with Enlarged Footings; Method of Constructing Piles by the Compressol System; Method of Constructing Piers in Caissons--Molding Piles for Driving--Driving Molded Piles: Method and Cost of Molding and Jetting Piles for an Ocean Pier; Method of Molding and Jetting Square Piles for a Building Foundation; Method of Molding and Jetting Corrugated Piles for a Building Foundation; Method of Molding and Driving Round Piles; Molding and Driving Square Piles for a Building Foundation; Method of Molding and Driving Octagonal Piles--Method and Cost of Making Reinforced Piles by Rolling.

Chapter Xi.--Methods and Cost of Heavy Concrete Work

IN FORTIFICATIONS, LOCKS, DAMS, BREAKWATERS AND PIERS 184

Introduction--Fortification Work: Gun Emplacement, Staten Island, N. Y., Mortar Battery Platform, Tampa Bay, Fla., Emplacement for Battery, Tampa Bay, Fla.; U. S. Fortification Work--Lock Walls, Cascades Canal--Locks, Coosa River, Alabama--Lock Walls, Illinois & Mississippi Canal--Hand Mixing and Placing Canal Lock Foundations--Breakwater at Marquette, Mich.--Breakwater, Buffalo, N. Y.--Breakwater, Port Colborne, Ontario--Concrete Block Pier, Superior Entry, Wisconsin--Dam, Richmond, Ind.--Dam at McCall Ferry, Pa.--Dam at Chaudiere Falls, Quebec.

Chapter Xii.--Methods and Cost of Constructing Bridge

PIERS AND ABUTMENTS 230

Introduction--Rectangular Pier for a Railway Bridge--Backing for Bridge Piers and Abutments--Pneumatic Caissons, Williamsburg Bridge--Filling Pier Cylinders--Piers, Calf Killer River Bridge--Constructing 21 Bridge Piers--Permanent Way Structures, Kansas City Outer Belt & Electric Ry.--Plate Girder Bridge Abutments--Abutments and Piers, Lonesome Valley Viaduct--Hand Mixing and Wheelbarrow Work for Bridge Piers.

Chapter Xiii.--Methods and Cost of Constructing Retaining

WALLS 259

Introduction--Comparative Economy of Plain and Reinforced Concrete Walls--Form Construction--Mixing and Placing Concrete--Walls in Trench--Chicago Drainage Canal--Grand Central Terminal, New York, N. Y.--Wall for Railway Yard--Footing for Rubble Stone Retaining Walls--Track Elevation, Allegheny, Pa.

Chapter Xiv.--Methods and Cost of Constructing Concrete

FOUNDATIONS FOR PAVEMENT 288

Introduction--Mixtures Employed--Distribution of Stock Piles--Hints on Hand Mixing--Methods of Machine Mixing--Foundation for Stone Block Pavement, New York, N. Y.--Foundation for Pavement, New Orleans, La.--Foundation for Pavement, Toronto, Canada--Miscellaneous Examples of Pavement Foundation Work--Foundation for Brick Pavement, Champaign, Ill.--Foundation Construction using Continuous Mixers.--Foundation Construction for Street Railway Track Using Continuous Mixers--Foundation Construction Using Batch Mixers and Wagon Haulage--Foundation Construction Using a Traction Mixer--Foundation Construction Using a Continuous Mixer--Foundation Construction Using a Portable Batch Mixer.

Chapter Xv.--Methods and Cost of Constructing Sidewalks,

PAVEMENTS, AND CURB AND GUTTER 307

Introduction--~Cement Sidewalks:~ General Method of Construction--Bonding of Wearing Surface and Base--Protection of Work from Sun and Frost--Cause and Prevention of Cracks--Cost of Cement Walks; Toronto, Ont.; Quincy, Mass.; San Francisco, Cal.; Cost in Iowa. ~Concrete Pavement:~ Windsor, Ontario--Richmond, Ind. ~Concrete Curb and Gutter:~ Form Construction--Concrete Mixtures and Concreting--Cost of Curb and Gutter: Ottawa, Canada; Champaign, Ill.

Chapter Xvi.--Methods and Cost of Lining Tunnels and

SUBWAYS 328

Introduction--Capitol Hill Tunnel, Pennsylvania R. R., Washington, D. C.--Constructing Side Walls in Relining Mullan Tunnel--Lining a Short Tunnel, Peekskill, N. Y.--Cascade Tunnel Great Northern Ry.--Relining Hodges Pass Tunnel, Oregon Short Line Ry.--Lining a 4,000-ft. Tunnel--Method of Mixing and Placing Concrete for a Tunnel Lining--Gunnison Tunnel--New York Rapid Transit Subway--Traveling Forms for Lining New York Rapid Transit Railway Tunnels--Subway Lining, Long Island R. R., Brooklyn, N. Y.

Chapter Xvii.--Methods and Cost of Constructing Arch

AND GIRDER BRIDGES 363

Introduction--Centers--Mixing and Transporting Concrete; Cableway Plants; Car Plant for 4-Span Arch Bridge; Hoist and Car Plant for 21-Span Arch Viaduct; Traveling Derrick Plant for 4-Span Arch Bridge--Concrete Highway Bridges Green County, Iowa--Highway Girder Bridges--Molding Slabs for Girder Bridges--Connecticut Ave. Bridge, Washington, D. C--Arch Bridges, Elkhart, Ind.--Arch Bridge, Plainwell, Mich.--Five Span Arch Bridge--Arch Bridge, Grand Rapids, Mich.

Chapter Xviii.--Methods and Cost of Culvert Construction 414

Introduction--Box Culvert Construction, C., B. & Q. R. R.--Arch Culvert Costs, N. C. & St. L. Ry.; 18-ft. Arch Culvert; Six Arch Culverts 6 to 16-ft. Span; 14-3/4-ft. Arch Culvert--Culverts for New Construction, Wabash Ry.--Small Arch Culvert Costs, Pennsylvania R. R.--26-ft. Span Arch Culvert--12-ft. Culvert, Kalamazoo, Mich.--Method and Cost of Molding Culvert Pipe.

Chapter Xix.--Methods and Cost of Reinforced Concrete

BUILDING CONSTRUCTION 433

Introduction--Construction, Erection and Removal of Forms: Column Forms; Rectangular Columns; Polygonal Columns; Circular Columns; Ornamental Columns--Slab and Girder Forms; Slab and I-Beam Floors; Concrete Slab and Girder Floors--Wall Forms--Erecting Forms--Removing Forms, Fabrication and Placing Reinforcement; Fabrication; Placing--Mixing, Transporting and Placing Concrete: Mixing; Transporting; Bucket Hoists; Platform Hoists; Derricks--Placing and Ramming--Constructing Wall Columns for a Brick Building--Floor and Column Construction for a Six-Story Building--Wall and Roof Construction for One-Story Car Barn--Constructing Wall Columns for a One-Story Machine Shop--Constructing One-Story Walls with Movable Forms and Gallows Frames--Floor and Roof Construction for Four-Story Garage.

Chapter Xx.--Method and Cost of Building Construction

OF SEPARATELY MOLDED MEMBERS 515

Introduction--Column, Girder and Slab Construction: Warehouses, Brooklyn, N. Y.; Factory, Reading, Pa.; Kilnhouse, New Village, N. J.--Hollow Block Wall Construction: Factory Buildings, Grand Rapids, Mich.; Residence, Quogue, N. Y., Two-Story Building, Albuquerque, N. Mex.; General Cost Data.

Chapter Xxi.--Methods and Cost of Aqueduct and Sewer

CONSTRUCTION 532

Introduction--Forms and Centers--Concreting--Reinforced Conduit, Salt River Irrigation Works, Arizona--Conduit, Torresdale Filters, Philadelphia, Pa.--Conduit, Jersey City Water Supply, Twin Tube Water Conduit at Newark, N. J.--66-in. Circular Sewer, South Bend, Ind.--Sewer Invert Haverhill, Mass.--29-ft. Sewer, St. Louis, Mo.--Sewer, Middlesborough, Ky.--Intercepting Sewer, Cleveland, Ohio--Reinforced Concrete Sewer, Wilmington, Del.--Sewer with Monolithic Invert and Block Arch--Cost of Block Manholes--Cement Pipe Constructed in Place--Pipe Sewer, St. Joseph, Mo.--Cost of Molding Small Cement Pipe--Molded Pipe Water Main, Swansea, England.

Chapter Xxii.--Methods and Cost of Constructing Reservoirs

AND TANKS 588

Introduction--Small Covered Reservoir--500,000 Gallon Covered Reservoir, Ft. Meade, So. Dak.--Circular Reservoir, Bloomington, Ill.--Standpipe at Attleborough, Mass.--Gas Holder Tank, Des Moines, Iowa--Gas Holder Tank, New York City--Lining a Reservoir, Quincy, Mass.--Relining a Reservoir, Chelsea, Mass.--Lining Jerome Park Reservoir--Reservoir Floor, Canton, Ill.--Reservoir Floor, Pittsburg, Pa.--Constructing a Silo--Grained Arch Reservoir Roof--Grain Elevator Bins.

Chapter Xxiii.--Methods and Cost of Constructing Ornamental

WORK 636

Introduction--Separately Molded Ornaments: Wooden Molds; Iron Molds; Sand Molding; Plaster Molds--Ornaments Molded in Place: Big Muddy Bridge; Forest Park Bridge; Miscellaneous Structures.

Chapter Xxiv.--Miscellaneous Methods and Costs 653

Introduction--Drilling and Blasting Concrete--Bench Monuments, Chicago, III.--Pole Base--Mile Post--Bonding New Concrete to Old--Dimensions and Capacities of Mixers--Data for Estimating Weight of Steel in Reinforced Concrete; Computing Weight from Percentage of Volume; Weights and Dimensions of Plain and Special Reinforcing Metals--Recipes for Coloring Mortars.

Chapter Xxv.--Methods and Cost of Waterproofing Concrete

STRUCTURES 667

Impervious Concrete Mixtures--Star Stetten Cement--Medusa Waterproofing Compound--Novoid Waterproofing Compound--Impermeable Coatings and Washes: Bituminous Coatings; Szerelmey Stone Liquid Wash; Sylvester Wash; Sylvester Mortars; Hydrolithic Coating; Cement Mortar Coatings; Oil and Paraffine Washes--Impermeable Diaphragms; Long Island R. R. Subway; New York Rapid Transit Subway.

Concrete Construction Methods and Cost

CHAPTER I.

METHODS AND COST OF SELECTING AND PREPARING MATERIALS FOR CONCRETE.

Concrete is an artificial stone produced by mixing cement mortar with broken stone, gravel, broken slag, cinders or other similar fragmentary materials. The component parts are therefore hydraulic cement, sand and the broken stone or other coarse material commonly designated as the aggregate.

CEMENT.

At least a score of varieties of hydraulic cement are listed in the classifications of cement technologists. The constructing engineer and contractor recognize only three varieties: Portland cement, natural cement and slag or puzzolan cement. All concrete used in engineering work is made of either Portland, natural or slag cement, and the great bulk of all concrete is made of Portland cement. Only these three varieties of cement are, therefore, considered here and they only in their aspects having relation to the economics of construction work. For a full discussion of the chemical and physical properties of hydraulic cements and for the methods of determining these properties by tests, the reader is referred to "Practical Cement Testing," by W. Purves Taylor.

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