US1643879A - Cement-block pavement - Google Patents

Description

E. DE MEYER CEMENT BLOCK PAVEMENT" Filed April 22, 1926 Sept. 27, 1927.

I Invenfor v j". fieyg/er;

, Attorney Patented Sept. 27, 1927. I UNITED STATES PATENT OFFICE.

EMIL DE MEYER, OF BROOKLYN, NEW YORK.

CEMENT-BLOCK PAVEMENT.

Application filed April 22, 1 9%. Serial No. 103,848.

The present invention relates to a cement thereby doing away with costly 1110011 block pavement and has for its principal veniences usually entailed in road building object to provide a construction which is in regard to mixing and the like. capable of easy assembly and disassembly, My plan consists of making paving blocks 60 may be manufactured and laid cheaply and as described above and laying them upon a has other numerous advantages as will apprepared bed of any desired material. The pear as the description proceeds. blocks should be of such a size that they may In the drawings be handled easily, and in actual practice I Figure l is a vertical section through a have found it desirable to separate the pavement embodying the features of my inblocks about three-eighths of an inch so that r ti I the space therebetween may be filled with a Fig. 2 is an enlarged similar view. plastic substance of either asphaltorjpitcl'i.

Figure 3 is a fragmentary top plan view The su b-soil,,of course, will first be brought of the pavement. I e to grade and packed, Then a bed of sand, 7

Fi 4 i a t pl vi w f meet the gravel, broken stones or cinders or a mixture aving blocks howing the same stored, thereof \Vlll be laid 110 Wltlllll nearly the Referring to the drawings in detail it will t ll' jiillcss O'i b UllS a d packed, t en b Seen that th ral 5 d ig at the .scre'eded over with a finer filling materialto blocks formed of cementitious material. Xact 'rade, the same as a finishing coat of Each block has its edges formed with chancement would be screeded in making the nels 6. Reinforcing bars 7 are formed in present cement roadways. The blocks are th hl k Th numeral 8 d t a b d placed on this bed resulting in a perfectlyeven of cinders, gravel, broken rock, or sa d a and smooth pavement. The blocks can be mixture thereof screeded to grade. The P a ed 011 those already laid and can be 80 blocks 5 are laid on the bed 8 preferabl hauled, together with other needed material in the arrangement shown in Figure 3. The ver new laid material. To illustrate niy edges f th bl k are di d i a d point, 1 Will refer to the former practice of relation and the space therebetween is govbluestcne flag pavement laying. The flags erned by strips of ood 9 adjacent the botwere Of uneven thickness and size, and 85 tom surfaces thereof and below the channel seldom was the bed to proper grade necessi- 6 Th h l 6 d th remaining tating lifting on one end at a time and only ti f th Spaces are fill d with la tic part underiilling, with a resulting cavity material 10, such as asphalt or pitch which under flags; vibrations lowered some flags makes the pavement waterproof, if desired, W q e t ng i j i ad lta d terms k t assure th bl k i t ting water, causing uneven heaving by frost. ti i at d or sagging a l ad i These and other reasons account for inferili h B th th t i 8 d th j i t ority of bluestone flags to modern cement formed by the pitch or asphalt prevent dis Concrete pavementi e p c i v of placement of the blocks in relation to each laying pavement as setforth in my descripas th under ll diti t hi h th v tion has been experienced by me and possest i bj t d i If d i d th see great superiority over existing practices blocks 5 may be scored as is indicated at and is f r Cheaper. My improved joint 12 in Figure l. The upper corners of the makes the pavement monolithic, at the same bl k are d d as i i di at d i Fi r time loads and stresses are taken up by indi- I60 2 by the numeral 14. These rounded upper vidual blocks and the resulting strain is not edges are provided to in th bl cks transmitted to adjacent blocks. This is true against damage in handling and against imbecause the blocks are of a size of about 20 pact of wheels. 7 by 20 inches which gives them sui'licient By constructing a pavement or roadway spread to carry any load over bed area. The at in accordance with this invention there will contraction and expansion of these individbe eliminated all delay in making the same ual blocks is Sosmall that it will easily be il bl f r d ng r f d facing or taken up in the joints, leaving the pavement damaging by rain, by frost, and too rapid as a Whole unaffected. The size of the blocks drying in hot weather. This invention makes it possible to decrease the thickness of ll th bl k t b constructed entirely the same from two inches for walks to four in a centralized conveniently located plant, inches for roadways, compared with four inches for Walks and six inches for roadways as now generally used which would permit a richer mixture at even Less cost. As these blocks will have finished surfaces both the top and bottom, they can be used over, after the top surface is worn and upon final use can be taken up and still be made use of in numerous ways. Thus the life of the pave ment would at least be doubled. The pavements in our cities and towns are continuously torn up for gas, electricity, andwa'ter supply and almost irreparable damage is done thereto besides causing untold inconveniences to passing vehicles, until repaired, at great cost to'the community. Withrny proposed pavement, one or two rows of blocks are taken up 'andreplacedleaving the work immediately finished. In congested sections, in factories, yards, walks and driveways, this pavement could be laid overnight without interferingwith the usual business. There are numerous other practical advantages which will appear to those actually carrying outthe subj'e'ct'ma'tter of t'he'present invention.

The present embodiment of the invention has been disclosed indetail since in actual practice it attains the features of advantage enumerated as desirable intlie statement of the invention 'and'the above description. It is apparent that changes in the details of construction, the materials, sizes and in the combination and arrangement of parts may be resorted to without departing from the with continuous channels, strips of wood be.

tween the blocks and located below thechannels, and a plastic material fillingthe channels and the space between the'bloeks on top ofthe strips, said plastic material terminat ing slightly below the upper surfaces of the blocks and the upper"corners ofthe blocks being rounded. r

In testimony w'hereo'ic'l my signature.

EMIL DE MEYER.

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