US381667A - Concrete pavement - Google Patents
Concrete pavement Download PDFInfo
- Publication number
- US381667A US381667A US381667DA US381667A US 381667 A US381667 A US 381667A US 381667D A US381667D A US 381667DA US 381667 A US381667 A US 381667A
- Authority
- US
- United States
- Prior art keywords
- layer
- tar
- pavement
- pebbles
- concrete pavement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000010410 layer Substances 0.000 description 26
- 239000004575 stone Substances 0.000 description 14
- 239000004576 sand Substances 0.000 description 12
- 229940108066 Coal Tar Drugs 0.000 description 10
- 239000011280 coal tar Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 8
- 239000002956 ash Substances 0.000 description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- -1 small pebbles Substances 0.000 description 8
- 239000011269 tar Substances 0.000 description 8
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000015450 Tilia cordata Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 235000012255 calcium oxide Nutrition 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- 239000003818 cinder Substances 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
- E01C7/145—Sliding coverings, underlayers or intermediate layers ; Isolating or separating intermediate layers; Transmission of shearing force in horizontal intermediate planes, e.g. by protrusions, by inlays
Definitions
- My invention relates to improvements in concrete paveinents,which will be hereinafter more fully described.
- I first lay a foundation or base of coarse broken stone and ashes or pebbles and roll the same until thoroughly settled, after which I mix broken stone, cinders, and pebbles with tar and form a second or intermediate layer of this.
- This intermediate layer is preferably from three to four inches thick, and after it has been thoroughly rolled I spread over its surface a layer (from one-half to two inches thick) of sand or ashes, small pebbles, and coaltar well mixed together.
- This layer must also be consolidated by rolling and the surface rendered as smooth as possible.
- This third or surface layer is intended to fill up all depressions, smooth the uneven places, and present a surface such as the finished work is intended to have.
- a filling-coat consisting of coal-tar, resin, and unslaked lime, in the following proportions: coal-tar. twenty gallons; resin, two to two and one-half pounds; lime.two to two and onehalf pounds.
- These ingredients must be well mixed together and boiled, and the mixture is poured over the surface of the last or surface layer in a liquid state.
- Ordinary surfacecement as Portland or its equivalent, is now spread over the pavement,
- the improved concrete pavement herein described consisting of a foundation-layer of coarse broken stone and ashes or pebbles, a second layer of broken stone, cinders, pebbles, and tar, a third layer of sand, small pebbles, and coal-tar, resin, and unslaked lime, and a surface-coating of cement and sand, as described and specified.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Description
LII
UNITED GEORGE A. BAYARD, OF BELLEFONTE, PENNSYLVANIA.
CONCRETE PAVEMENT.
SPECIFICATION forming part of Letters Patent No. 391,667, dated April 24, 1888.
' Applicatim filed December 28, 1887. Serial No. 259,258. {No specimens.)
To all whom, it may concern.-
Be it known that I, GEORGE A. BAYARD, a citizen of the United States, residing at Belle fonte, in the county of Centre and State of Pennsylvania, have invented a new and useful Improvement in Concrete Pavements,of which the following is a specification.
My invention relates to improvements in concrete paveinents,which will be hereinafter more fully described.
I first lay a foundation or base of coarse broken stone and ashes or pebbles and roll the same until thoroughly settled, after which I mix broken stone, cinders, and pebbles with tar and form a second or intermediate layer of this. This intermediate layer is preferably from three to four inches thick, and after it has been thoroughly rolled I spread over its surface a layer (from one-half to two inches thick) of sand or ashes, small pebbles, and coaltar well mixed together. This layer must also be consolidated by rolling and the surface rendered as smooth as possible. This third or surface layer is intended to fill up all depressions, smooth the uneven places, and present a surface such as the finished work is intended to have. Over this surface is spread a filling-coat consisting of coal-tar, resin, and unslaked lime, in the following proportions: coal-tar. twenty gallons; resin, two to two and one-half pounds; lime.two to two and onehalf pounds. These ingredients must be well mixed together and boiled, and the mixture is poured over the surface of the last or surface layer in a liquid state. All pavements of this general constrnction-namely, one or more layers of broken stone joined by tar or cementare very porous, and this filling-coat is designed to fill all the pores and interstices,so as to render the pavement perfectly solid and watertight. To this end the mixture is poured on the pavement until no more will be absorbed. Ordinary surfacecement, as Portland or its equivalent, is now spread over the pavement,
and it is again rolled, after which sharp sand is spread over the surface. This construction makes a pavement which is watertight and solid, with no appreciable porosity, therefore allowing no chance for it to absorb moisture from the ground and remain in a damp state. The water will also flow off the surface more readily and quickly.
It will be seen that there are three distinct layers in this pavement-namely,afoundationlayer of coarse stone, an intermediate layer of smaller stone, cinder-s, pebbles, and coal'tar, and asurface-layer of sand or ashes, small pebbles, and coal-tar well mingled. These three layers, after being successively rolled, are finally consolidated as firmly as possible, are then united bya filling coat or mixture which percolates through the pores and interstices which have not been closed by rolling and unites the layers to form a perfectly water tight impervious mass. The lime in the filling renders the same very hard when it becomes calcined by exposure. Before this filling mix ture becomes thoroughly hard, however, the surfaceeement, as before described, and the sand are added.
Having thus described my invention, I claim as follows:
The improved concrete pavement herein described, consisting of a foundation-layer of coarse broken stone and ashes or pebbles, a second layer of broken stone, cinders, pebbles, and tar, a third layer of sand, small pebbles, and coal-tar, resin, and unslaked lime, and a surface-coating of cement and sand, as described and specified.
In testimony that I claim the foregoing as my own I have hereto affixed my signature in pres ence of two witnesses.
GEORGE A. BAYARD.
W'itnesses:
WILBUR F. REEDER, W. E. GRAY.
Publications (1)
Publication Number | Publication Date |
---|---|
US381667A true US381667A (en) | 1888-04-24 |
Family
ID=2450661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US381667D Expired - Lifetime US381667A (en) | Concrete pavement |
Country Status (1)
Country | Link |
---|---|
US (1) | US381667A (en) |
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0
- US US381667D patent/US381667A/en not_active Expired - Lifetime
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