CA1180218A - Paving blocks - Google Patents
Paving blocksInfo
- Publication number
- CA1180218A CA1180218A CA000404774A CA404774A CA1180218A CA 1180218 A CA1180218 A CA 1180218A CA 000404774 A CA000404774 A CA 000404774A CA 404774 A CA404774 A CA 404774A CA 1180218 A CA1180218 A CA 1180218A
- Authority
- CA
- Canada
- Prior art keywords
- block
- blocks
- rectangular
- joint line
- square
- 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
Links
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
- E01C5/00—Pavings made of prefabricated single units
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- 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
- E01C2201/00—Paving elements
- E01C2201/16—Elements joined together
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
Abstract An L-shaped paving block with a rectangular portion and an integrally formed square portion with its side equal to one half the difference in length between the shorter and longer sides of the rectangular portion. The blocks can be laid in a variety of laying patterns which provide interlocking or partial interlocking between adjacent blocks.
Description
The present invention relates to paving blocks for paving yround surfaces. Some known paving blocks are of such configuration that when the blocks are laid together in an appropriate laying pattern, the adjacent blocks interlock with one another i.e. the blocks are formed with portions whose side surEaces interengage to resist forces tending to cause adjacent blocks to slip relative to one another. This renders the paved surface more stable and less vulnerable to disruption by ground heaving or settling movement or as a result of traction forces caused for example by reaction of the paved surface with the wheels of vehicles. In some applications, however, where the ground surface is itself stable and the paved surace will not be subjected to heavy loads, it is not necessary to have adjacent paving blocks interlocking throughout the entire paved surEace.
Xi is desirable that sets of the paving blocks should be capable of being laid in a number of distinct laying patterns, so that the user can be permitted a choice of a particular laying pat~ern best suited to his taste and requirements, or which can be selected to harmonize with architectural Eeatures of adjacent structures.
~ nown paving blocks which are capable o~ heing laid in interlocking arrangements have, however, provided a restricted choice o~ laying patterns. The present disclosure provides blocks and sets o~ blocks which are capable of being laid in interlocking or partially-interlocking arrays, in a variety of distinctive laying patterns.
Xi is desirable that sets of the paving blocks should be capable of being laid in a number of distinct laying patterns, so that the user can be permitted a choice of a particular laying pat~ern best suited to his taste and requirements, or which can be selected to harmonize with architectural Eeatures of adjacent structures.
~ nown paving blocks which are capable o~ heing laid in interlocking arrangements have, however, provided a restricted choice o~ laying patterns. The present disclosure provides blocks and sets o~ blocks which are capable of being laid in interlocking or partially-interlocking arrays, in a variety of distinctive laying patterns.
- 2 -More particularly, the invention provides a generally L-shaped unitary paving block having a block portion rectangular in plan with sides of dissimilar length and, formed integrally therewith, a block portion square in plan positioned adjacent an end of one longer side of the rectangular portion and having one side face formed flush with the adjacent shorter end face of the rectangular portion, the sides of the square portion being one half the difference in length of the sides of the rectangular portionO Owing to the relative dimensions of the sides of these blocks, they are adapted to be laid together in a variety of distinctive styles of laying patterns, as described in more detail below.
Desirably, the blocks are formed with dummy joint lines provided by grooves and with bevelled edges at their upper sides. These blocks are asymmetric and advantageously, a set of these blocks is provided, consisting of a plurality of similar blocks, some of which are mirror images of the others. Sets of such blocks can provide an increased choice of laying patterns.
BlocXs and sets o~ blocks in accordance with the invention will now be more fully described, by way of example only, with reference to the accompanying drawings in which:
Figures 1 and 2 show perspective views of Eirst and second forms of blocks, respectively.
Figure 3 shows a plan view of the blocX of Figure 2;
Figures ~ and 5 show plan views oE further forms of blo~ks Figures 6 to 17 show plan views o various styles of laying patterns employing blocks or sets of blocXs in accordance with the invention.
Desirably, the blocks are formed with dummy joint lines provided by grooves and with bevelled edges at their upper sides. These blocks are asymmetric and advantageously, a set of these blocks is provided, consisting of a plurality of similar blocks, some of which are mirror images of the others. Sets of such blocks can provide an increased choice of laying patterns.
BlocXs and sets o~ blocks in accordance with the invention will now be more fully described, by way of example only, with reference to the accompanying drawings in which:
Figures 1 and 2 show perspective views of Eirst and second forms of blocks, respectively.
Figure 3 shows a plan view of the blocX of Figure 2;
Figures ~ and 5 show plan views oE further forms of blo~ks Figures 6 to 17 show plan views o various styles of laying patterns employing blocks or sets of blocXs in accordance with the invention.
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Figures 18 to 23 show plan views of various laying patterns obtained with the use of auxiliary filler blocks;
Figures 24 and 25 show further laying pattern~ obtained with the blocks of the invention; and Figures 26 to 28 show further laying patterns obtained with the use of auxiliary filler blocks.
Referring to the drawings Figure 1 shows a generally L-shaped unitary pav.ing block 10. The block cons.ists of a block portion 11 rectangular in plan t~ which is integrally joined a portion 12 square in plan. The square p.lan portion l2 is formed adjacent one end of the longer side of the rectangular portion 11 and has a side face 13 which is formed flush with the adjacent shorter end face 14 of the rectangular portion 11.
In the preferred form as shown, the upper side edges are uniformly bevelled as at 16. When a plurality of the blocks are laid together in a closely-packed laying pattern, the adjacent bevelled edges together form V-section grooves, which emphasi2e the outline of the individual block elements in the laying pattern, and which avoid sharp edges at the upper surfaces of the blocks which could damage vehicle tires, or the feet or shoes of persons walking on the paved surface, and which wou1d be prone to chipping.
Figure 2 shows a .further example of a block 20, similar to the block 10 except along the imaginary boundary between the square block portion ~2 and the rectangular block portion 11 a V-section groove 21 is formed in the upp`er surace of the block.
The groove 21 forms a dummy joint line, so that when the blocks 20 are laid, the block portions 11 and 12 give the appearance of being separate elements.
Figure 4 shows a block 1Oa which is a mirror image of the block 10 of Figùre 1~ .
Figures 18 to 23 show plan views of various laying patterns obtained with the use of auxiliary filler blocks;
Figures 24 and 25 show further laying pattern~ obtained with the blocks of the invention; and Figures 26 to 28 show further laying patterns obtained with the use of auxiliary filler blocks.
Referring to the drawings Figure 1 shows a generally L-shaped unitary pav.ing block 10. The block cons.ists of a block portion 11 rectangular in plan t~ which is integrally joined a portion 12 square in plan. The square p.lan portion l2 is formed adjacent one end of the longer side of the rectangular portion 11 and has a side face 13 which is formed flush with the adjacent shorter end face 14 of the rectangular portion 11.
In the preferred form as shown, the upper side edges are uniformly bevelled as at 16. When a plurality of the blocks are laid together in a closely-packed laying pattern, the adjacent bevelled edges together form V-section grooves, which emphasi2e the outline of the individual block elements in the laying pattern, and which avoid sharp edges at the upper surfaces of the blocks which could damage vehicle tires, or the feet or shoes of persons walking on the paved surface, and which wou1d be prone to chipping.
Figure 2 shows a .further example of a block 20, similar to the block 10 except along the imaginary boundary between the square block portion ~2 and the rectangular block portion 11 a V-section groove 21 is formed in the upp`er surace of the block.
The groove 21 forms a dummy joint line, so that when the blocks 20 are laid, the block portions 11 and 12 give the appearance of being separate elements.
Figure 4 shows a block 1Oa which is a mirror image of the block 10 of Figùre 1~ .
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Fiyure 5 shows a further example of a block 30 in which the rectanyular portion 11 is made narrower and longer than the examples of Figures 1 to 4.
In all cases, the square portion 12 is dimensioned so that its sides c, as shown in Figures 3, 4, and 5 are of a length equal to one halE the difference between the lengths of the longer side b of the rectangular portion 11 and the shorter side a of the rectangular portion. These relative dimensions of the sides of the blocks permit sets of the blocks to be ~aid in a variety of interlocking or partially interlocking layinq patterns, some of which are illustrated in Figures 6 to 28.
Figure 6 shows a laying pattern using a set of the blocks 20 of Figures 2 and 3~ together with blocks ?0a which are mirror images of the blocks 20. It will be noted that in this laying pattern each rectangular block portion has along its longer side D the shorter end face a of an adjacent rectangular block portion 11 and two square portions 12 one of which r on one side, is integral with the rectangular block portion 11 itself.
Owing to the presence of the dummy joint line 21, the overall appearance resembles a woven pattern.
Two further examples of laying patterns are given in Figures 24 and 25, using blocks similar to the blocks 10 of Figure 1. In Figure 24, one hal~ oE the blocXs making up the pattern are rotated through 180~. The blo~ks are arranged in rows which are inclined with respect to the faces o~ the individual blocks, and each block in each row i5 staggered with respect to its neighbour. In Figure ?5, the blocks 1 n are again arranged in inclining rows, and in staggered relationship, but in this case the blocks are all disposed in the same orientation.
It will be noted that in the arrangements of Figures 6, 24, and 25, each block interengages with adjacent blocXs so as to resist lateral slipping of any one block relative to a neighbouring block~
Fiyure 5 shows a further example of a block 30 in which the rectanyular portion 11 is made narrower and longer than the examples of Figures 1 to 4.
In all cases, the square portion 12 is dimensioned so that its sides c, as shown in Figures 3, 4, and 5 are of a length equal to one halE the difference between the lengths of the longer side b of the rectangular portion 11 and the shorter side a of the rectangular portion. These relative dimensions of the sides of the blocks permit sets of the blocks to be ~aid in a variety of interlocking or partially interlocking layinq patterns, some of which are illustrated in Figures 6 to 28.
Figure 6 shows a laying pattern using a set of the blocks 20 of Figures 2 and 3~ together with blocks ?0a which are mirror images of the blocks 20. It will be noted that in this laying pattern each rectangular block portion has along its longer side D the shorter end face a of an adjacent rectangular block portion 11 and two square portions 12 one of which r on one side, is integral with the rectangular block portion 11 itself.
Owing to the presence of the dummy joint line 21, the overall appearance resembles a woven pattern.
Two further examples of laying patterns are given in Figures 24 and 25, using blocks similar to the blocks 10 of Figure 1. In Figure 24, one hal~ oE the blocXs making up the pattern are rotated through 180~. The blo~ks are arranged in rows which are inclined with respect to the faces o~ the individual blocks, and each block in each row i5 staggered with respect to its neighbour. In Figure ?5, the blocks 1 n are again arranged in inclining rows, and in staggered relationship, but in this case the blocks are all disposed in the same orientation.
It will be noted that in the arrangements of Figures 6, 24, and 25, each block interengages with adjacent blocXs so as to resist lateral slipping of any one block relative to a neighbouring block~
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It will be appreciated that the laying arrangement of Figure 6, as well as those of Figures 24 and 25, can be achieved with any form of block in accordance with the invention in which the dimension of the side c of the square portion 12 is related to the dimensions of the shorter side a and the longer side b of the rectangular portion 11 by the formula 2c=b-a, including blocks in which the disparity of the lengths a and b is much greater or is much less than those oc the blocks 10 and 20 shown in Figures 1, 2 and 3. In Figure 5, for example, the block 30 has a rectangular portion 11 with a larger difference in length between its sides and with the square portion 12 being proportionately larger. It will be appreciated that sets of blocks similar to those of Figure 5, including blocks which are mirror images of the block of Figure 5, can be arranged in the clcsely-packed laying pattern of Figure 6, as well as in the laying arrangement of Figures 24 and 25, and that sets of blocks of other configurations conforming to the above-mentioned formula can also be arranged in these laying patterns.
Further striking patterns can be achieved using sets of blocks having dummy joint lines demarcating one or more regularly-shaped areas on the upper surface of the blocks.
Figures 7 to 12 show laying patterns similar to Figure 6. In Figures 7 and 9 to 12, the blocks are provided with various arrangements of dummy joint lines. Figure 8 shows the pattern which is obtained when the blocks have no dummy joint lines~ In Figure 7, the blocks 40 have a Eirst dummy joint line 41 extending transversely across tl1e rectangular block -portion Erom the point o~ intersection o~ one side ~ace o the square block portion with the adjacent side oE the rectal1gular block portion, and a Eurther joint line 42 c1ividiny into two equal areas the major portion of the rectangular portion demarcated by the Eirst joint line 41; The blocks 40a are mirror images of the blocks ~0 .
In Figure 8, the blocks 10 and 1Oa are mirror images of one another. It will be appreciated that if the blocks have no
It will be appreciated that the laying arrangement of Figure 6, as well as those of Figures 24 and 25, can be achieved with any form of block in accordance with the invention in which the dimension of the side c of the square portion 12 is related to the dimensions of the shorter side a and the longer side b of the rectangular portion 11 by the formula 2c=b-a, including blocks in which the disparity of the lengths a and b is much greater or is much less than those oc the blocks 10 and 20 shown in Figures 1, 2 and 3. In Figure 5, for example, the block 30 has a rectangular portion 11 with a larger difference in length between its sides and with the square portion 12 being proportionately larger. It will be appreciated that sets of blocks similar to those of Figure 5, including blocks which are mirror images of the block of Figure 5, can be arranged in the clcsely-packed laying pattern of Figure 6, as well as in the laying arrangement of Figures 24 and 25, and that sets of blocks of other configurations conforming to the above-mentioned formula can also be arranged in these laying patterns.
Further striking patterns can be achieved using sets of blocks having dummy joint lines demarcating one or more regularly-shaped areas on the upper surface of the blocks.
Figures 7 to 12 show laying patterns similar to Figure 6. In Figures 7 and 9 to 12, the blocks are provided with various arrangements of dummy joint lines. Figure 8 shows the pattern which is obtained when the blocks have no dummy joint lines~ In Figure 7, the blocks 40 have a Eirst dummy joint line 41 extending transversely across tl1e rectangular block -portion Erom the point o~ intersection o~ one side ~ace o the square block portion with the adjacent side oE the rectal1gular block portion, and a Eurther joint line 42 c1ividiny into two equal areas the major portion of the rectangular portion demarcated by the Eirst joint line 41; The blocks 40a are mirror images of the blocks ~0 .
In Figure 8, the blocks 10 and 1Oa are mirror images of one another. It will be appreciated that if the blocks have no
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bevelled edges or joint lines which distinguish their upper side from their lower side, the blocks 1Oa may be merely the blocks 10 in inverted position.
In Figure 9, the blocks 50 have a Eirst joint line 51 extending along the boundary between the square and rectangular block portions, and a further joint line 52 longitudinally dividing into two equal areas the rectangular portion demarcated by the joint line 51, and the blocks 50a are mirror images of the block 50.
In Figure 10, the blocks 60 have a first joint line 61 arranged similarly to the joint line 41 of Figure 7, and a second joint line 62 dividing the rectangular portion transversely into two equal areas. The blocXs 60a are again mirror images.
In Figure 11~ the blocks 70 have a dummy joint line 71 arranged similarly to the joint line 41 of Fiyure 7~ and the blocks 70a are mirror images o~ the blocks 70.
In Figure 12, the blocks 80 have a first dummy joint line 81 arranged similarly to the joint line 21 of Figure 3~ a second dummy joint line 82 arranged similarly to the joint line 41 o~ Figure 7, and a third joint line 83 which demarcates adjacent the opposite end of the rectangular block portion an area equal to the area demarcated between the lines B1 and 82.
The blocks 80a are mirror images of the blocks ~0.
Fiyure 13 shows a further example of a laying pattern which can be achieved with the blocks in accQrdance with the invention. In this example, the blocks are arranged in sub-sets oE ~our, each block beiny similar to the block 2na o~ Figure 6.
Ea~h sub-set of our blocks forms a square in which the four square portions 12 o~ the blocks are arranged adjacent one another. The blocks in this laying pattern are partially interlocking in that within each square sub-set ormed by four blocks, the square portion 12 of each block interengages with the neiyhbouring blocks, and resists lateral slippage of the blocks
bevelled edges or joint lines which distinguish their upper side from their lower side, the blocks 1Oa may be merely the blocks 10 in inverted position.
In Figure 9, the blocks 50 have a Eirst joint line 51 extending along the boundary between the square and rectangular block portions, and a further joint line 52 longitudinally dividing into two equal areas the rectangular portion demarcated by the joint line 51, and the blocks 50a are mirror images of the block 50.
In Figure 10, the blocks 60 have a first joint line 61 arranged similarly to the joint line 41 of Figure 7, and a second joint line 62 dividing the rectangular portion transversely into two equal areas. The blocXs 60a are again mirror images.
In Figure 11~ the blocks 70 have a dummy joint line 71 arranged similarly to the joint line 41 of Fiyure 7~ and the blocks 70a are mirror images o~ the blocks 70.
In Figure 12, the blocks 80 have a first dummy joint line 81 arranged similarly to the joint line 21 of Figure 3~ a second dummy joint line 82 arranged similarly to the joint line 41 o~ Figure 7, and a third joint line 83 which demarcates adjacent the opposite end of the rectangular block portion an area equal to the area demarcated between the lines B1 and 82.
The blocks 80a are mirror images of the blocks ~0.
Fiyure 13 shows a further example of a laying pattern which can be achieved with the blocks in accQrdance with the invention. In this example, the blocks are arranged in sub-sets oE ~our, each block beiny similar to the block 2na o~ Figure 6.
Ea~h sub-set of our blocks forms a square in which the four square portions 12 o~ the blocks are arranged adjacent one another. The blocks in this laying pattern are partially interlocking in that within each square sub-set ormed by four blocks, the square portion 12 of each block interengages with the neiyhbouring blocks, and resists lateral slippage of the blocks
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relative to one another. As each sub-set of fo~r bloclcs presents straight sides on its exterior, each ~ub-set can, however, slip laterally relative to adjacent sub-sets~
Figure 14 shows the same laying pattern as Figure 13, using the blocks 50a of Figure 9. Fi~re 15 shows the same laying pattern using the blocks 70a of Figure 11. Figure 16 shows the laying pattern using the blocks 10a of Figures 4 and 8, and Figure 17 shows the laying pattern using the blocks 40a of Figure 7.
It will be appreciated that the laying patterns of Figures 13 to 17 can be achieved only with blocks which have the dimensions o their square portions 12 related to the dimensions of their rectangular portions 11 such that they conEorm to the above-ment.ioned formula but, as discussed above, within the bounds of the above-mentioned formula, wide variations in the relative dimensions of the rectangular portion 11 to the square portion 12 are possible.
Further laying patterns can be achieved using auxiliary filler blocks which are desirably o~ rectangular or square form.
In the case that the filler blocks are rectangular, preferably they have one side of length equal to the side of the square block portion 1~ of the main L-shaped block, and one side o~
length equal to the shorter side o the rectangular block portion ~1 o the main blocks. These ~iller blocks desirably ~lso have uni~ormly bevelled edges along the sides o:E their upper sureace, simllar to the be~elled edges 16 as shown in ~igure 1~
Figures 18 to 2~ show laying patterns achieved with the use o~ a filler block 90 o~ the latter type. In Figure 18, the ~iller blocks 90 are used together with blocks similar to the blocks 10 o Figure 1. The paving arrangement comprises sub-sets consisting of two oE the blocks 10 disposed around one of the auxiliary filler blocks 90~ The pattern is partially interlocX-ing as ln each sub-set, there is some interengagement between the square block portions 12 of the blocks 10 w;th the end surfaces of the auxiliary fil.ler blocks 90.
relative to one another. As each sub-set of fo~r bloclcs presents straight sides on its exterior, each ~ub-set can, however, slip laterally relative to adjacent sub-sets~
Figure 14 shows the same laying pattern as Figure 13, using the blocks 50a of Figure 9. Fi~re 15 shows the same laying pattern using the blocks 70a of Figure 11. Figure 16 shows the laying pattern using the blocks 10a of Figures 4 and 8, and Figure 17 shows the laying pattern using the blocks 40a of Figure 7.
It will be appreciated that the laying patterns of Figures 13 to 17 can be achieved only with blocks which have the dimensions o their square portions 12 related to the dimensions of their rectangular portions 11 such that they conEorm to the above-ment.ioned formula but, as discussed above, within the bounds of the above-mentioned formula, wide variations in the relative dimensions of the rectangular portion 11 to the square portion 12 are possible.
Further laying patterns can be achieved using auxiliary filler blocks which are desirably o~ rectangular or square form.
In the case that the filler blocks are rectangular, preferably they have one side of length equal to the side of the square block portion 1~ of the main L-shaped block, and one side o~
length equal to the shorter side o the rectangular block portion ~1 o the main blocks. These ~iller blocks desirably ~lso have uni~ormly bevelled edges along the sides o:E their upper sureace, simllar to the be~elled edges 16 as shown in ~igure 1~
Figures 18 to 2~ show laying patterns achieved with the use o~ a filler block 90 o~ the latter type. In Figure 18, the ~iller blocks 90 are used together with blocks similar to the blocks 10 o Figure 1. The paving arrangement comprises sub-sets consisting of two oE the blocks 10 disposed around one of the auxiliary filler blocks 90~ The pattern is partially interlocX-ing as ln each sub-set, there is some interengagement between the square block portions 12 of the blocks 10 w;th the end surfaces of the auxiliary fil.ler blocks 90.
- 8 -Figures 19, 21 and 22 show arranyements slmilar to those of Figure 18, using blocks similar to the blocks 40 of Figure 7, blocks 70 of Figure 11, and 20 of Fig~re 2, respectlvely.
The arrangement of Fig~re 20 uses a further form of L-shaped block 100 having a first transversely extending dummy joint line 101 similar to the joint line 41 in Figure 7 and second and third dummy joint lines 102 extending parallel to the line 101 and dividing the major portion of the rectangular block portion 11 of the block 100 into three equal areas.
Figure ~3 shows a further example of a laying pattern which exhibits good interlocking. In this example, L-shaped blocks similar to the blocks 20a of Figure 6 are employed, toyether with an auxiliary square iller block portion 110, having its side of length equal to twice the side of the square block portion 12 of the blocks 20aO The block 110 is Eormed with dummy joint lines 111 and 112 dividing the upper surace of the block into four equal squares.
Figures 26, 27 and ~8 show a further example of a laying pattern ernployin~ an auxiliary filler block 120 which is square in plan with its side of length equal to the side of the square block portion 1~ of the main L-shaped blocks. This arrangement again provides partial interlocking as there is interengagement between the s~uare block portions 12 of the main L shaped blocks and the square plan filler block portions 120.
In Figure 26, the main L-shaped blocks are similar to the blocks 10a o~ Figure 4. Fi~ure ~7 employs main L-shaped blocks similar to the blocks 70a o~ Figure 11. `In Figure ?8, the main L-shaped blocks 130 have a tr~nsversely extending dummy joint line 131 bisecting the re~tangular portion 11 o~ the main block 130.
The blocks are preferably formed by molding them frorn a cementitious castable composition of the type conventionally employed for molding precast paving blocks, preferably using a casting rame gener~ally of the known type which has a number of
The arrangement of Fig~re 20 uses a further form of L-shaped block 100 having a first transversely extending dummy joint line 101 similar to the joint line 41 in Figure 7 and second and third dummy joint lines 102 extending parallel to the line 101 and dividing the major portion of the rectangular block portion 11 of the block 100 into three equal areas.
Figure ~3 shows a further example of a laying pattern which exhibits good interlocking. In this example, L-shaped blocks similar to the blocks 20a of Figure 6 are employed, toyether with an auxiliary square iller block portion 110, having its side of length equal to twice the side of the square block portion 12 of the blocks 20aO The block 110 is Eormed with dummy joint lines 111 and 112 dividing the upper surace of the block into four equal squares.
Figures 26, 27 and ~8 show a further example of a laying pattern ernployin~ an auxiliary filler block 120 which is square in plan with its side of length equal to the side of the square block portion 1~ of the main L-shaped blocks. This arrangement again provides partial interlocking as there is interengagement between the s~uare block portions 12 of the main L shaped blocks and the square plan filler block portions 120.
In Figure 26, the main L-shaped blocks are similar to the blocks 10a o~ Figure 4. Fi~ure ~7 employs main L-shaped blocks similar to the blocks 70a o~ Figure 11. `In Figure ?8, the main L-shaped blocks 130 have a tr~nsversely extending dummy joint line 131 bisecting the re~tangular portion 11 o~ the main block 130.
The blocks are preferably formed by molding them frorn a cementitious castable composition of the type conventionally employed for molding precast paving blocks, preferably using a casting rame gener~ally of the known type which has a number of
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vertical partitions defining a number of mold recesses conforming to the shapes of the individual block elements to be produced.
In the molding procedure the cementitious mixture poured into the casting frame may be compacted and compressed to force the mixture into all the recesses of the individual molds. The surface features of the individual blocks, namely the bevelled edge portion 16 and the V-section grooves forming the dummy joint lines 21, 41, etc. can be readily produced by casting the mixture in contact with a plate formed with raised strip portions having inclining sides complementary to the sides of the bevelled edges and grooves to be produced in the blocks. One advantage of the blocks in accordance with the invention is that they can be cast in a relatively closely packed and compact arrangement using, for example, a casting frame with partitions coinciding with the spaces between individual blocks in the arrangement shown in Figure 13.
Particularly striking decorative effects can be achieved with blocks which have a portion or portions oE their surface differentiated from other portions by a contrasting colour or surface texture. For example, one or more of the regular square or rectangular surEace areas demarcated by one or more of the dummy joint lines may be Eormed with a contrasting colour or surface texture. This can be readily achieved in the above casting procedure employing a casting plate provided with textured mold portions which can be made replaceahle so that various styles Qf surface decoration can be achieved, and by applying pigmented cementitious compositions in selected portions of the molds beEore pouring in the remainder of the castable composition.
The ~locks can also be ormed of other durable and castahle or moldable cornpositions, for example thermoplastic COmpQSitiOnS derived from scrap thermoplastics and scrap rubber.
vertical partitions defining a number of mold recesses conforming to the shapes of the individual block elements to be produced.
In the molding procedure the cementitious mixture poured into the casting frame may be compacted and compressed to force the mixture into all the recesses of the individual molds. The surface features of the individual blocks, namely the bevelled edge portion 16 and the V-section grooves forming the dummy joint lines 21, 41, etc. can be readily produced by casting the mixture in contact with a plate formed with raised strip portions having inclining sides complementary to the sides of the bevelled edges and grooves to be produced in the blocks. One advantage of the blocks in accordance with the invention is that they can be cast in a relatively closely packed and compact arrangement using, for example, a casting frame with partitions coinciding with the spaces between individual blocks in the arrangement shown in Figure 13.
Particularly striking decorative effects can be achieved with blocks which have a portion or portions oE their surface differentiated from other portions by a contrasting colour or surface texture. For example, one or more of the regular square or rectangular surEace areas demarcated by one or more of the dummy joint lines may be Eormed with a contrasting colour or surface texture. This can be readily achieved in the above casting procedure employing a casting plate provided with textured mold portions which can be made replaceahle so that various styles Qf surface decoration can be achieved, and by applying pigmented cementitious compositions in selected portions of the molds beEore pouring in the remainder of the castable composition.
The ~locks can also be ormed of other durable and castahle or moldable cornpositions, for example thermoplastic COmpQSitiOnS derived from scrap thermoplastics and scrap rubber.
Claims (19)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A generally L-shaped unitary paving block having a block portion rectangular in plan with sides of dissimilar length and, formed integrally therewith, a block portion square in plan positioned adjacent an end of one longer side of the rectangular portion and having one side face formed flush with the adjacent shorter end face of the rectangular portion, the sides of the square portion being one half the difference in length of the sides of the rectangular portion.
2. A block as claimed in claim 1 wherein the upper face of the block is smooth and continuous.
3. A block as claimed in claim 1 having one or more dummy joint lines demarcating one or more regularly-shaped areas on the upper surface of the block, the or each joint line comprising a groove in the upper surface of the block.
4. A block as claimed in claim 3 having a joint line extending along the boundary between the square and rectangular block portions.
5. A block as claimed in claim 3 having a joint line extending transversely across the rectangular block portion from the point of intersection of one side face of the square block portion with the adjacent side of the rectangular block portion.
6. A block as claimed in claim 4 having a further joint line dividing into two equal areas the major rectangular portion demarcated by the first-mentioned joint line.
7. A block as claimed in claim 5 having a further joint line dividing into two equal areas the major rectangular portion demarcated by the first-mentioned joint line.
8. A block as claimed in claim 6 or 7 wherein the further joint line extends transversely of the rectangular block portion.
9. A block as claimed in claim 6 or 7 wherein the further joint line extends longitudinally of the rectangular block portion.
10. A block as claimed in claim 4 having a second joint line extending transversely across the rectangular block portion from the point of intersection of one side face of the square block portion with the adjacent side of the rectangular block portion.
11. A block as claimed in claim 10 having a third joint line parallel to the second joint line and demarcating adjacent the opposite end of the rectangular block portion an area equal to the area demarcated between the first-mentioned and second joint lines.
12. A block as claimed in claim 5 including two further joint lines parallel to the first-mentioned joint lines dividing into three equal areas the major rectangular portion demarcated by the first-mentioned joint line.
13. A block as claimed in claim 1 wherein the upper sides of the block have uniformly bevelled edges.
14. A block as claimed in claim 2, 3, or 4 wherein the upper sides of the block have uniformly bevelled edges.
15. A paving block set comprising a plurality of blocks as claimed in claim 7, 2, or 3, each block being of the same dimensions.
16. A paving block set comprising a plurality of blocks as claimed in claim 3, 4, or 13, each block being of the same dimensions and comprising blocks which are mirror images of the first-mentioned blocks.
17. A paving block set comprising a plurality of blocks as claimed in claim 1, 2, or 3 together with a plurality of rectangular plan filler blocks each having one side of length equal to the side of the said square block portion and one side of length equal to the shorter side of said rectangular block portion.
18. A paving block set comprising a plurality of blocks as claimed in claim 1, 2, or 3 together with a plurality of square plan filler blocks each having a side of length equal to the side of said square block portion.
19. A paving block set comprising a plurality of blocks as claimed in claim 1, 2, or 3, together with a plurality of square plan filler blocks each having a side of length equal to twice the side of said square block portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000404774A CA1180218A (en) | 1982-06-09 | 1982-06-09 | Paving blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000404774A CA1180218A (en) | 1982-06-09 | 1982-06-09 | Paving blocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1180218A true CA1180218A (en) | 1985-01-02 |
Family
ID=4122964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000404774A Expired CA1180218A (en) | 1982-06-09 | 1982-06-09 | Paving blocks |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1180218A (en) |
-
1982
- 1982-06-09 CA CA000404774A patent/CA1180218A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |