This disclosure concerns concrete blocks and methods of making and using such blocks. Specifically, this disclosure pertains to a set of dry cast blocks that, when assembled together, give a seamless appearance.
Soil retention, protection of natural and artificial structures and increased land use are only a few reasons that motivate the use of landscape structures. For example, soil is often preserved on a hillside by maintaining the foliage across that plane. Root systems from trees, shrubs, grass and other naturally occurring plant life work to hold the soil in place against the forces of wind and water. When reliance on natural mechanisms is not possible or practical, an artificial mechanism such as a retaining wall can be utilized. Retaining walls can be made from individual blocks and constructed in courses. Examples of blocks and walls constructed using these blocks can be found in U.S. Pat. No. 7,048,472; U.S. Pat. No. 6,612,784; and U.S. Pat. No. 6,113,318, each of these patents being incorporated herein by reference. Blocks can be arranged into walls and be finished with cap blocks along the top edge of the wall. The cap blocks give a finished appearance to the wall.
Such blocks can also be used in a variety of landscaping applications. These landscaping types of applications utilize blocks in a variety of ways to enhance the appearance of the landscape.
When arranging blocks, including cap blocks, adjacent to each other, it is often desirable to simulate the appearance of natural rock or stone or other attractive appearances. One problem with simulating such appearances is the joint between two adjacent blocks. If the observer's eye is drawn to the joint, the wall can have an appearance of several blocks arranged next to each other, rather than the appearance of one continuous wall. Therefore, there is a need for blocks, such as retaining wall blocks and cap blocks, which have a structure that allow for a seamless appearance when arranged next to each other.
In one aspect, a set of dry cast blocks is provided including a first dry cast block and a second dry cast block. The first dry cast block has at least six sides including a first exposure face, an opposite second face, opposite top and bottom faces extending between the first exposure face and second face, and opposite first and second side faces extending between the first exposure face and the second face and the top and bottom faces. The first exposure face has a non-planar first topographical definition, a first edge along the first side face, and a second edge along the second side face. The first edge has a first irregular profile shape extending in dimension from a straight line. The second dry cast block includes at least six sides including a first exposure face, an opposite second face, opposite top and bottom faces extending between the first exposure face and second face, and opposite first and second side faces extending between the first exposure face and second face and the top and bottom faces. The first exposure face of the second dry cast block has a non-planar second topographical definition, a first edge along the first side face, and a second edge along the second side face. The second topographical definition is different from the first topographical definition. The second edge of the second dry cast block has the first irregular profile shape extending in dimension from a straight line.
In another aspect, a dry cast block arrangement is provided. The dry cast block arrangement includes a first dry cast block and the second dry cast block as characterized above. The first dry cast block first side face is against the second dry cast block second side face. The first dry cast block first exposure face and the second dry cast block first exposure face are adjacent to each other. The first edge of the first exposure face of the first dry cast block is aligned with the second edge of the first exposure face of the second dry cast block to create a seamless appearance along the first exposure faces.
In another aspect, a set of dry cast blocks is provided including at least a first dry cast block and a second dry cast block. The first dry cast block includes at least 6 sides including a first exposure face, an opposite second face, opposite top and bottom faces extending between the first exposure face and second face, and opposite first and second side faces extending between the first exposure face and second face and the top and bottom faces; the first exposure face having a first 3-dimensional pattern and a first generally vertical edge along the first side face and a second generally vertical edge along the second side face; the first side face at first edge having a first irregular profile shape; and the second side face at the second edge having a profile shape that is the mirror image of the first side face at the first edge. The second dry cast block includes at least 6 sides including a first exposure face, an opposite second face, opposite top and bottom faces extending between the first exposure face and second face, and opposite first and second side faces extending between the first exposure face and second face and the top and bottom faces; the first exposure face of the second dry cast block having a second 3-dimensional pattern and a first generally vertical edge along the first side face and a second generally vertical edge along the second side face; the second 3-dimensional pattern being different from the first 3-dimensional pattern; the first side face at the first edge of the second dry cast concrete block having the same profile shape as that of the first side face at the first edge of the first dry cast concrete block; and the second side face at the second edge of the second dry cast block having the same profile shape as that of the side face at the second edge of the first dry cast concrete block.
In another aspect, a method of assembling a dry cast block arrangement includes providing a first dry cast block and a second dry cast block, as characterized above. Next, the first side face of the first dry cast block is oriented against the second side face of the second dry cast block. The method further includes aligning the first irregular profile shape of the second dry cast block to create a seamless appearance.
In
The blocks 12 are referred to as “dry cast” blocks because they are made from a dry cast process, as opposed to a wet cast process. A dry cast process utilizes dry cast, no slump concrete. The block is formed by using dry cast, no slump concrete in a mold and then cured. Dry cast no-slump concrete and processes for molding blocks utilizing such concrete are well-known in this art.
In the embodiment depicted, the blocks 12 are cap blocks 20. That is, in the use depicted in
In the embodiments shown, each block 12 has at least six sides 22. The at least six sides 22 include at least a first exposure face 24. By the term “exposure face” it is meant the face of the block 12 that will have an appearance that is exposed for visibility and is not oriented directly against another block side 22. In preferred embodiments, each block 12 will include an opposite second face 26, which sometimes will be also a second exposure face 27 (
Still in reference to
In the embodiment shown, there is also an opposite bottom face 30 (
Still in reference to
In preferred embodiments, each block 12 will have a shape that allows the blocks 12 to be placed adjacent to each other and also allow the blocks to be adjacent to each other to form a curved wall without exposing gaps between adjacent blocks. One way this is accomplished is by tapering at least one of the first and second side faces 32, 34. One example is shown in the embodiment of
In accordance with principles of this disclosure, the first exposure face 24 of the first block 14, 106 has a non-planar first topographical definition 38, also referred to herein as a first 3-dimensional pattern 38. The second block 16, 108 has a non-planar second topographical definition 40 (or second 3-dimensional pattern 40) at its first exposure face 24. Further, the third block 18 has a non-planar third topographical definition 32 (or third 3-dimensional pattern) at its first exposure face 24. The non-planar first topographical definition 38, the non-planar second topographical definition 40, and the non-planar third topographical definition 42 are different from each other. By the term “non-planar topographical definition,” or the term “3-dimensional pattern”, it is meant a three-dimensional arrangement of physical attributes not contained within a single plane, which can include at least one peak projecting from a vertical plane normal to the plane of the top and bottom faces 28, 30 of at least 0.5 inch, and may further include a plurality of peaks (projections) or smooth hills some of which may be uniform in height or vary between 0.1 inch and up to 2 inches (for example), one or a plurality of reliefs recessed from the peaks (projections) or hills, and a general non-planar contoured surface; such structure can include a craggy, irregular appearance, simulating a stone face, or for example, it can include a regular, patterned appearance. Each of the first topographical definition 32 (first 3-dimensional pattern 32), second topographical definition 40 (second 3-dimensional pattern 40), and third topographical definition 42 (third 3-dimensional pattern 42) are different in structure, and hence appearance, from each other. By “different,” it is meant a structural difference that is appreciably noticeable (detectable) by a human eye, when viewing the exposure faces 24 side by side.
The first exposure face 24 of the first block 14, 106 has a first edge 44 along the first side face 32. That is, the first edge 44 is at the intersection of the first exposure face 24 and the first side face 32. Likewise, the first exposure face of the first block 14, 106 has a second edge 46 along the second side face 34 (
In
The second block 16, 108 has at its second topographical definition 40 a first edge 60 along the first side face 32 and a second edge 62 along the second side face 34 (
One of the reasons for this type of preferred structure can be appreciated by viewing
The third block 18 has third topographical definition 32 at its exposure face 24. It also includes a first edge 66 along the first side face 32 of the third block 18 and a second edge 68 along the second side face 34 of the third block 18. In the particular embodiment illustrated in
As mentioned above, in some embodiments, the second face 26 is also a second exposure face 27. In the embodiments of
The first topographical definition 70 (second exposure face first 3-dimensional pattern 70) of the second exposure face 27 of the first block 12 has a third edge 72 along the first side face 32 and a fourth edge 74 along the second side face 34 (
The second block 16 has on its second exposure face 27 a second exposure face non-planar second topographical definition 90 (second exposure face second 3-dimensional pattern 90). It differs in structure and appearance from the second exposure face non-planar first topographical definition 70 (second exposure face first 3-dimensional pattern 70). The second exposure face non-planar second topographical definition 90 includes a third edge 92 along the first side face 32 (
Preferably, the third block 18 has second exposure face 27 and which includes a second exposure face non-planar third topographical definition 96 (a second exposure face third 3-dimensional pattern 96) (
As explained above, in the example embodiment illustrated, the second exposure face 26 of each of the blocks 14, 16, 18 has third edges 72, 92, 98 and fourth edges 74, 94, 100 as having the second irregular profile shape 78. This means that when the blocks 14, 16, 18 are aligned in a way that the side faces 32, 34 are against each other, then the second exposure faces 27 can be put adjacent to each other and in even alignment to result in a seamless appearance of blocks 14, 16, 18 along the contour of the respective second exposure faces 27. In
By reviewing
Of course, it should be realized a plurality of blocks 12 can be utilized in the block arrangement 10. The plurality can include only two blocks 12, or the plurality may include three, four, or more than four blocks 12. When a plurality of blocks 12 are used, for each block, each can have a unique non-planar topographical definition (3-dimensional pattern) that is different from the non-planar first topographical definition (first 3-dimensional pattern) and non-planar second topographical definition (second 3-dimensional pattern) and other blocks in the plurality. In such pluralities, each of the blocks 12 can have first and second edges at the intersection of the exposure face and respective side faces that are mirror images of each other with substantially identical profiles (generally irregular extending in dimension from a straight line). If the blocks also have a second exposure face, the second exposure faces can be unique from all others and can similarly have edges that are mirror images of each other with substantially identical profiles, extending in dimension from a straight line. Of course, in constructing walls or other structures using blocks, some of the blocks can have the same exposure face features as others, and some of the blocks can be plain, or flat, and/or unornamented.
Because of the symmetrical relationship between the first profile shape 48 and the second profile shape 78, the blocks 12 can also be arranged in a manner in which the first exposure face 24 of one block is adjacent to the second face 26 (which can be a second exposure face 27) of a second block, and the first profile 48 of the first block will align with the second profile shape 78 of the second block. This arrangement can be done as long as both blocks have their respective top faces 28 adjacent to each other and their respective bottom faces 30 adjacent to each other. In other words, unless the first and second profile shapes 48, 78 are also made to be symmetrical about a horizontal axis, then when aligning the blocks with the second face 26 (or exposure face 27) next to the first exposure face 24, all of the blocks need to have all of the top faces 28 extending upwardly or have all need to have the top faces 28 extending downwardly. If one of the blocks has the top face 28 extending up, while an adjacent block has the top face 28 extending down, then the profile shapes 48, 78 will not align with each other, in the embodiment shown.
It should be understood that the blocks 12 can be used in methods of assembling the dry cast block arrangement 10 by providing individual ones of the first block 14, 106 and second block 16, 108. Next, the first side face 32 of the first block 14, 106 is oriented against the second side face 34 of the second block 16, 108. Next, the first irregular profile shape 48 of the first block 14, 106 is aligned with the first irregular profile shape 48 of the second block 16, 108 to create a seamless appearance. The third block 18 can be added to the first and second blocks 14, 16, by again, aligning the first irregular profile shape 48 of the third block 18 with the first irregular profile shape 48 of one of the first and second blocks 14, 16, with the side faces adjacent and against each other and the first exposure faces 24 adjacent to each other.
In still other methods, the blocks 14, 16, 18 can be provided and the first exposure face 24 of the first block 14 can be aligned next to one of the side faces 32, 34 of another of the blocks 12. This method includes selecting the first exposure face 24 of the first block 14 to be adjacent to either the first exposure face 24 or the second exposure face 27 of the adjacent block. When arranging these blocks next to each other, the irregular profile shapes 48 or 78 will be aligned with each other to give a seamless appearance. In one such method, first selected ones of the blocks will have the first exposure face 24 facing the same direction, and other selected ones of the blocks will have the first exposure face 24 facing an opposite direction as the first selected ones of the blocks, as long as the top faces 28 for each of the blocks also face the same direction.
Blocks 12 can be made in a dry cast molding process by putting no slump dry cast concrete into a mold. The mold will have moveable side walls so that the first and second exposure faces 24, 26 can be created by the moveable side walls and then moved out of the way when de-molding. In such a process, the top face 28 and bottom face 30 will have flat sides, as will the first side face 32 and second side face 34. After de-molding, the blocks 12 are cured, using conventional techniques known in the art.