US1463979A

US1463979A - Paving and process of paving streets and the like

Info

Publication number: US1463979A
Application number: US592965A
Authority: US
Inventors: Robert C Stubbs
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-10-07
Filing date: 1922-10-07
Publication date: 1923-08-07
Anticipated expiration: 1940-08-07

Description

Au 7, m3. 1,463,979

R. c. STUBBS PAVING AND PROCESSOF PAVING STREETS AND THE LIKE Filed 001:. 1 1922 ROBERT @WWBGF- Patented Aug. 7 319 23.

tantra s EUBEET (C. ST'UBBE,

0E IDALLAS, TEXAS.

PAVING AND PROCESS OF PAVTNG STREETS AND THE LIKE.

Application filed detobcr 7,

To all whom it may concern.

Be it known that 1, ROBERT C. STUBBB, a citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented certain new and useful Improvements in Paving and Processes of Pavin Streets and the like, of which the following is a specification.

My invention relates to paving for streets and roadsand the like; and the object is to provide a process for making an efficient and lasting paving. There has been much trouble with streets and roads made of a concrete base and a coating of asphaltic or bituminous material because the coating becomes wavy and bumpy because the coating moves on the concrete base and buckles. The object of this invention is to provide a process of preparing the surface of the concrete base with systematic or uniform ribs or ridges which will prevent the coating of asphalt from moving or slipping on the concrete and so maintain an even surface and to unite the coating with the concrete base so that there will be no separation of the coatin from the concrete.

lieference is bad to the accompanying drawings which form a part of this application.

ltig. 1 is a section of a concrete base prepared. for receivin a coating of asphalt or similar material. ig. 2 is a section of the paving after the coating'has been applied.

The concrete base isprepared under the processes described in patents granted to me, Nos. 918,388 and 1,383,851. lBy changing the design of the cleats in the vibrator shown in the latter patent, the surface of the concrete slab or base can be formed with uniform ribs or ridges by vibration and pressure. The asphalt coating is placed on the base and forced down, in between the ridges or ribs by suitable pressure and vibrations to force all of the air or approximately all of the air out of the coating and to make the coating cling to the concrete down in between the rid es and the vibrations and pressure may applied to the coating in the same manner as pressure and vibrations are applied to the concrete base. The pressure and vibration, when applied to the concrete, will cause the concrete and surplus mortar to rise up about the cleats which are forming the concrete. This process makes a new product in paving. The new 1922. Serial No. 592,965.

product is composed of a concrete base with a ridged surface and an asphaltic coating united to the base by portions of the coatin forced down in the spaces between the ri ges of the concrete. The object is to make a. permanent bond of the asphaltic coating with the concrete so that there will be no moving of the coating of asphalt or bituminous material on the concrete base. The design of the ridged surface may be varied. All the ridges need not be parallel necessarily. Some ridges may run in one direction and others in another direction and so make the moving of the coating on the concrete less liable to move in any direction.

What ll claim, is,-

1. The herein described process of making paving for streets and the like consisting of preparing a base or slab of concrete, placing a pressure-exerting means consisting of a platform made up of spaced cleats on the fresh laid concrete for periods of time, applying vibrations to said pressure exerting means for expelling air and surplus moisture from the concrete and for forming grooves in the surface of the concrete, removing said pressure-exerting means and placing a relatively thick coating of asphaltic material on the concrete and forcing portions of the asphaltic material into said grooves.

2. The herein described process of making paving for streets and the like consisting of preparing a base or slab of concrete on a subgrade, using vibration and pressure enertin means consisting of a platform made up 0 spaced cleats on the surface of the concrete to drive out air and surplus moisture and to form uniform ridges or ribs of concrete before the concrete is cured, removing the pressure-exerting means, then layin a surface and binding coating of aspha tic material in quick succession on the concrete base and forcing portions of the asphaltic material down into the spaces between the ridges of concrete and bonding the asphaltic coating and concrete base together.

3. The herein described process of making paving for streets and the like consisting of preparmg a base or slab of concrete, placing a pressure-exerting means consisting of a plat orm made up of spaced cleats on the fresh laid concrete for periods of time, applying vibrations to said pressure exerting means for expelling air and surplus moisture from the concreteand for forming grooves in the surface of the concrete, removing the pressure-exerting means, p1ac- 5 ing a relatively thick coating of asphaltic material on the concrete and forcing portions of the asphaltio material into said grooves, and applying pressure and vibrations simultaneously for bonding the asphaltic material to the slab of concrete. 10

In testimony whereof, I set my hand, this 4th day of October, 1922.

ROBERT C. STUBBS.