JP4902377B2 - Basic structure of concrete block fence and its construction method - Google Patents

Description

  The present invention relates to an external foundation unit that is advantageous for use in constructing an external foundation represented by a concrete block fence, and an external foundation structure and construction method using the external foundation unit.

  In a building such as a house, a plurality of concrete blocks are stacked to construct a fence as an external structure. For example, it is determined that the foundation is reinforced concrete having a length of 35 cm or more so that the concrete block wall does not collapse due to an earthquake.

  The general method for constructing concrete block fences is to construct a formwork after laying reinforcing bars on the ground surface after laying and rolling crushed stones along the target construction site. After placing the concrete into this formwork and constructing the foundation with the base (base) and the rising part, after the curing period of this foundation is finished, remove the formwork and put the concrete on the rising part of the hardened foundation Stack up the blocks.

  In the above construction method, the Ministry of Land, Infrastructure, Transport and Tourism has announced as the curing period of the placed concrete that it is set to 5-8 days depending on the temperature. Also, as described in the Architectural Institute of Japan Standard Specification for Building Construction (JASS5), work on the placed concrete is prohibited for one day after placing concrete. The concrete curing period is based on academic research, not administrative or legal.

  If a load is applied to the bottom plate before sufficient strength is obtained without sufficient curing, problems such as deformation of the foundation itself and cracks in the foundation arise. However, at the construction site of exterior construction, there is a problem that a curing period must be set within a short construction period, and the work of craftsmen becomes complicated.

  For this reason, a formwork-like foundation slab block for concrete blocks is proposed, which eliminates the work of assembling and dismantling the formwork to increase work efficiency and enables construction of the foundation rising part without waiting for concrete curing. (See Patent Document 1). This technology consists of a pair of face shells facing the outer shells of a rectangular parallelepiped mold block, and connected and fixed to the inner shell side of the pair of facing face shells orthogonal to the pair of facing face shells. , A pair of main webs having a distribution-strength insertion groove for inserting the distribution bars, and a pair of main webs connected to and fixed to the center portion of the inner shell side of the pair of main webs, to support the main and vertical bars This is a basic slab block in which a main muscle / longitudinal muscle insertion groove for inserting and fixing a main muscle and a longitudinal muscle is opposed to each other at the inner shell side central portion of a pair of face shells facing each other.

  In the technique of the above-mentioned patent document 1, a pair of face shells facing each other function as a mold, and a mold block at a basic rising portion can be stacked on the face shell and the main web. -There is an effect that the dismantling work is eliminated, the construction of the foundation rising portion can be performed continuously after the construction of the foundation slab, and the construction period can be shortened.

Utility Model Registration No. 3122098

  In the technique of Patent Document 1, since a pair of facing face shells constituting the foundation slab block have a function as a mold, by installing the foundation slab block, a mold for setting the width dimension of the foundation slab is simultaneously formed. It will be assembled. Therefore, the width dimension of the foundation slab (bottom) depends on the distance between a pair of face shells facing each other in the foundation slab block.

  On the other hand, the width dimension of the bottom plate on the exterior foundation varies according to the conditions such as the ground conditions and the number of steps of concrete blocks to be stacked. For this reason, the technique of Patent Document 1 requires many types of basic slab blocks in which the distance between a pair of face shells facing each other is set in accordance with the width dimension of the bottom board.

  Accordingly, there is a possibility that problems such as complicated management of manufacturing the basic slab block and complicated inventory management may occur.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an external foundation unit capable of setting the bottom base of the external foundation to a desired width, an external foundation structure using the external foundation unit, and a construction method of the external foundation. It is to provide.

In order to solve the above problems, the basic structure of the concrete block fence according to the present invention is as follows:
In the foundation structure of concrete block fence formed using blocks, the foundation structure is
Two side plate members (1) and (2), which are directly supported by the pre-performed ground industry (20) and are arranged to face each other at equal intervals with a predetermined distance, than the side plate member height. A space is formed by being connected by a low connecting member (3), and a penetrating portion that penetrates in the thickness direction of the side plate member (1) or (2) in at least one of the two side plate members (1) or (2) ( 4) an exterior foundation unit (A) that is a block provided with two side plate members (1) and (2) of the exterior foundation unit, and a block (10) stacked on the upper surface of the exterior foundation unit;
Between the block (10) and the two side plate members (1), (2) of the exterior base unit (A), the side plate member (1) provided with a penetrating portion (4) from the exterior base unit (A). Or a predetermined space in a space formed between (2) and a formwork (21) disposed in the ground industry (20) at a predetermined distance along the side plate member (1) or (2) side. By arranging the reinforcing bars and placing concrete,
Integral reinforced concrete with the block (10) as a rising part, and the concrete placed in the space from the building foundation unit (A) to the formwork (21) including the building foundation unit (A) as a bottom plate It is characterized by having a structure .

Here, the exterior base unit (A) has at least one of the two side plate members (1) or (2) provided with a penetrating portion (4) penetrating in the thickness direction of the side plate member (1) or (2). Since it is provided, the penetration part (4) may be provided in each of the two side plate members (1) or (2).
Further, in the exterior foundation unit (A), the height of the two side plate members (1) and (2) constitutes the bottom plate of the foundation structure of the concrete block wall, so that it is the same as the thickness of the bottom plate. More preferably. Further, since the exterior base unit (A) is configured such that the block (10) is stacked on the upper surfaces of the two side plate members (1), (2), the two side plate members (1), (2) The dimension interval is preferably the same thickness as the block (10).

Moreover, the construction method of the concrete block fence according to the present invention includes two side plate members (1), which are arranged opposite to each other with a predetermined distance from a previously applied ground work (20). 2) is connected by a connecting member (3) lower than the height of the side plate members (1) and (2) to form a space, and at least one of the side plate members (1) or (2) has the side plate member ( The step of supporting the external foundation unit (A), which is a block provided with a penetration portion (4) penetrating in the thickness direction of 1) or (2), and supporting the external foundation unit (A) in the ground A step of disposing a formwork (21) in the groundwork (20) at a predetermined distance along the side plate member (1) or (2) side provided with the penetrating part (4);
A step of loading the block (10) constituting the foundation of the exterior on the upper surface of the two side plate members (1), (2) of the exterior foundation unit (A), the block (10), the exterior foundation unit ( Between the two side plate members (1) and (2) of A), the side plate member (1) or (2) provided with the penetrating portion (4) of the exterior base unit (A), and the mold (21 And a concrete block (11) placed above the block (10) before a predetermined curing period elapses. It is characterized by doing .

The exterior base unit (A) ("foundation unit (A) ") used for the foundation structure of the concrete block fence has two side plate members (1) having the same height and at least one having a through-hole (4 ), (2) is a block in which a space is formed inside the basic unit (A) while being arranged to face each other with a predetermined interval and connected by a connecting member (3) . For this reason, a reinforcing bar can be arranged inside the foundation unit (A) to fill the concrete. Further, the side plate member side (1) or (2) provided with the penetrating portion (4) has a formwork at a position separated from the side plate member (1) or (2) by a dimension corresponding to the width dimension of the bottom board. (21) can be configured, and concrete can be placed from above the rising block (10), above the base unit (A), and above the bottom plate portion.

Therefore, build up the reinforced concrete foundation structure by forming the rising part and the bottom board (the part that supports the rising part) with blocks, placing reinforcing bars in the internal space and through part (4), and filling the concrete. Can do.
Further, the width of the bottom plate is the dimension from the other side surface of the foundation unit (A) to the formwork (21), and an optimum foundation can be constructed according to the structure of the concrete block fence , the ground conditions, and the like.

In the foundation structure of the concrete block fence , the foundation unit (A) is arranged side by side and supported by the earthwork (20), and the formwork along the side plate member (1) or (2) provided with the penetrating part (4) ( By constructing 21) and arranging the bars, the weight of the concrete block loaded on top of the block (10) and the foundation unit (A) can be directly supported on the ground.
For this reason, even if concrete is placed on the bottom plate part constituted by the foundation unit (A) and the formwork (21), the weight of the concrete block loaded on the block (10) and the foundation unit (A) is struck. It does not affect the installed concrete and does not adversely affect the placed concrete.

Moreover , in the construction method of the above concrete block fence , the foundation unit (A) is arranged side by side and supported by the earthwork (20) , and is predetermined along the side plate member (1) or (2) provided with the penetrating part (4). distance is spaced constitute mold (21), above the base unit and Haisuji with stacking the blocks (10) comprising a rising portion of the foundation concrete block walls on top of (a), the block (10) and By placing concrete in the space formed by the exterior foundation unit (10) and the formwork (21), a foundation of a concrete block fence that is an integral reinforced concrete structure is constructed , and the block (10) Concrete blocks can be constructed by stacking concrete blocks on top .

Since the foundation unit (A) is directly supported by the ground (20) surface, after the concrete has been cast for about one day, the rising part of the concrete block fence is removed without removing the formwork (21). By loading the concrete block constituting the concrete block fence on the upper part of the constituting block (10) , the construction work can be started without causing vibration or weight to be applied to the concrete placed on the bottom plate part.

  Therefore, it is possible to carry out the concrete block loading work after one day has elapsed as the curing period of the placed concrete is at least 5 days, and the concrete block loading work period and the curing period. Can be duplicated. For this reason, the period required for exterior construction can be shortened.

  Hereinafter, the most preferable form of the foundation unit, exterior foundation structure, and construction method according to the present invention will be described.

  The foundation unit according to the present invention is configured so that an exterior foundation can be constructed by setting an optimum width of the bottom base in accordance with the conditions of the target exterior structure and ground. When the foundation is constructed, it is arranged on the groundwork side so that the weight acting on the foundation unit can be supported by the groundwork side. For this reason, even if a concrete block placed on the bottom plate is loaded with concrete blocks, for example, after a day when it is assumed that no harmful vibrations should be given to the concrete placed on the bottom plate, these weights are directly It is possible to convey to the work, and it is possible to proceed with the external work despite the period of curing the placed concrete.

  The basic unit of the present invention has two side plate members that are arranged to face each other with the same height and a predetermined distance, and these side plate members are connected by a connecting member that is lower than the height of the side plate member. Further, at least one side plate member is provided with a penetrating portion penetrating in the thickness direction.

  The two side plate members have a function as a loading portion on which the blocks constituting the rising portion of the exterior foundation are loaded above, and further, the weight of the concrete blocks loaded in a plurality of stages above the blocks It has a function as a supporting member for transmitting weight. For this reason, it is necessary for the side plate member to have dimensions and strength that can satisfy the above functions.

  The height and length of the side plate member (planar dimensions of the foundation unit) are not particularly limited, and are preferably equal to the thickness of the bottom base of the exterior foundation.

  The connecting member connects two side plate members at a predetermined position in the height direction, and has a function of restraining these side plate members when a load is applied to the side plate members. The connecting member should not hinder the flow of the concrete placed on the foundation unit, and is thus formed to be lower than the height of the side plate member.

  The relationship between the height of the side plate member and the height of the connecting member is not particularly limited, and when the two side plate members are connected, there is a gap that allows the concrete placed above and below the connecting member to flow. Preferably it is formed.

  The dimension between the two side plate members, that is, the thickness of the base unit is not particularly limited. However, since the block which comprises the standing | starting-up part of a foundation foundation is loaded above the foundation unit arranged in the geological field when constructing a foundation foundation, it is preferable that it is the same as the thickness of this block.

  A through portion penetrating in the thickness direction is provided in at least one of the two side plate members constituting the base unit. This penetration part allows the base bar or rib base bar arranged in the base plate to pass when the base plate is constructed, and when the concrete is placed, the inside of the base unit, that is, between the two side plate members. It is for constructing an integral concrete structure by continuing the space and the external space constituting the bottom board.

  Therefore, a formwork that defines the end of the bottom plate is installed along the side plate member provided with the penetrating portion and at a predetermined distance. Moreover, the dimension and the number of the penetrating part are not particularly limited, and it is preferable that the penetrating part is appropriately set based on conditions such as the height of the base line from the ground industry and the fluidity of the concrete.

  In the present invention, the two side plate members constituting the base unit may be provided with penetrating portions, respectively. In this case, the formwork is formed along the two side plate members of the base unit.

  The foundation units are installed side by side on the ground, and the blocks constituting the exterior foundation are loaded on the upper side, and concrete is placed from above. In particular, the side plate member not provided with the through portion has a function as a mold, and it is not preferable that the concrete leaks from between the arranged base units.

  For this reason, a fitting portion made of steps or irregularities is formed on the small edge surface in the longitudinal direction of the side plate member that is a side plate member that is not particularly provided with a through portion, and that fits the fitting portion. It is preferable to prevent the leakage of the placed concrete by arranging them together. It is preferable to form the fitting portion on the upper surface in addition to the small edge surface in the longitudinal direction. Thus, a plurality of fitting portions are formed on the small edge surface and the upper surface in the longitudinal direction, respectively. It is also possible to function as a guide when installing the base unit.

  The material which comprises the above basic units is not specifically limited, What is necessary is just to be able to exhibit the function mentioned above. Examples of such materials include metals such as concrete, iron, and aluminum, or synthetic resins. Using these materials, concrete blocks poured into a mold and cured, or cast iron and aluminum castings, Furthermore, it can be a synthetic resin molded product or the like. If these materials are used, there is no problem in adhesion to the concrete placed when the external foundation is constructed.

  Further, the exterior foundation structure according to the present invention forms a formwork that defines the bottom plate at a position separated by a predetermined distance along a side plate member provided with a penetrating portion, in which the above-mentioned foundation units are arranged in advance in the prefabricated groundwork. And having a structure in which a predetermined reinforcing bar is arranged in a space corresponding to the bottom plate defined by the foundation unit and the formwork, and the block constituting the foundation unit and the external foundation loaded on the foundation unit. The weight can be supported by the ground.

  The distance between the base unit and the formwork, that is, the size of the bottom plate, can be set to a size necessary for the external foundation for constructing the target external structure. Therefore, it is possible to construct an external foundation having any size corresponding to the target external structure and ground conditions.

  Next, an example of the basic unit will be described with reference to the drawings. FIG. 1 is a diagram illustrating the configuration of a basic unit according to the present embodiment. FIG. 2 is a diagram illustrating a fitting portion of the base unit.

  The basic unit A shown in the figure is configured as a concrete block, and two side plate members 1 and 2 having the same height are arranged to face each other at a predetermined interval. They are connected by a connecting member 3 having a height lower than that, and one side plate member 2 is provided with two through portions 4.

  The connecting member 3 is disposed substantially at the center in the length direction (left and right direction in FIG. 1) of the side plate members 1 and 2 and at substantially the center in the height direction (up and down direction in FIG. 1). Are connected. For this reason, in the base unit A, spaces are formed between the side plate members 1 and 2 on the upper and lower sides and the left and right sides of the connecting member 3, respectively, and this space becomes a space in which concrete flows and is filled.

  Although the height of the upper surface 3a of the connecting member 3 is not particularly limited, it corresponds to a bar arrangement position of a main reinforcement which will be described later. In this way, by setting the upper surface of the connecting member 3 to a height corresponding to the main bar arrangement position, it is possible to easily proceed with the main bar arrangement work when constructing the exterior foundation.

  In the basic unit A of this embodiment, the side plate members 1 and 2 are connected by one connecting member 3, but this is not a limitation, and the side plate members may be connected by a plurality of connecting members. It is natural to be good.

  The penetrating part 4 is used to pass through the base reinforcing bars arranged when the bottom plate of the exterior foundation is passed and distribute the placed concrete, and is provided so as to penetrate in the thickness direction of the side plate member 2. ing. In particular, the penetrating portions 4 are provided on both sides of the connecting member 3 in the longitudinal direction of the side plate member 2 and are arranged so as not to form a space that does not lead to the outside inside the base unit A. Yes.

  In the present embodiment, the penetrating portion 4 is formed in a gate shape on the side plate member 2, but is not limited to this shape, and is formed so as to reach the small edge surface 2a in the longitudinal direction of the side plate member 2. (In this case, the side plate member 2 has a T-shape when viewed from the front), and may also be formed by penetrating in the height direction from both small edge surfaces 2a in the longitudinal direction to the connecting member 3 side (in this case) The plan view becomes an E-shape).

  A fitting portion 5 having a step shown in FIG. 2 (a) is formed on the small edge surface 1a in the longitudinal direction of the side plate member 1 in which the through portion 4 in the basic unit A is not provided. Similarly, the upper surface 1b, 2b of the side plate members 1, 2 is formed with a fitting portion 6 having a step shown in FIG. 5B between the block 10 constituting the rising portion of the exterior foundation C. Yes.

  By forming the fitting part 5 as described above, when the plurality of basic units A are arranged in the longitudinal direction, the fitting parts 5 of the adjacent basic units A are fitted to each other, so that linearity can be relatively easily achieved. The gap formed between the adjacent basic units A can be made as small as possible to prevent leakage of concrete.

  Furthermore, by forming the fitting portion 6, it is possible to easily secure the mutual position by fitting the fitting portions 6 together when the blocks 10 are stacked on the upper part of the base unit A. In addition, the gap formed between the base unit A and the block 10 that are vertically adjacent to each other can be reduced to prevent the leakage of concrete.

  Next, the structure of the basic unit B according to the second embodiment will be described. FIG. 3 is a diagram illustrating the configuration of the base unit according to the present embodiment. In the figure, the same parts as those in the first embodiment and the parts having the same functions are denoted by the same reference numerals and the description thereof is omitted.

  The basic unit B according to the present embodiment is made of synthetic resin, and is formed by connecting the side plate members 1 and 2 by connecting members 3 arranged at both end portions and substantially central portions in the longitudinal direction, respectively. The side plate member 1 is provided with reinforcing ribs 1c. The reinforcing ribs 1c are configured to resist the weight of the blocks stacked above and to resist the pressure of concrete placed on the foundation unit B. Has been.

  The connecting member 3 is formed lower than the height of the side plate members 1 and 2, and when the side plate members 1 and 2 are connected, spaces in which concrete flows are formed above and below the connecting member 3, respectively.

  The side plate member 2 is formed with through portions 4 between the connecting members 3. The penetrating portion 4 is formed so as to occupy a position lower than the height of the side plate member 2 from the lower end portion of the side plate member 2 and a position between the connecting members 3 as shown in FIG. For this reason, a bridge 2c is formed at the upper end portion of the side plate member 2, and a continuous portion in the longitudinal direction of the base unit B is formed by the bridge 2c.

  The base unit B configured as described above is formed in a box shape as a whole, and can exhibit high rigidity and stable strength. For this reason, for example, a steel plate other than the synthetic resin can be welded, or various materials such as cast iron and aluminum casting can be used.

  Next, an exterior foundation structure configured using the above-described foundation unit A and a method for constructing the exterior foundation structure will be described. FIG. 4 is a diagram for explaining the external foundation structure when the external structure is a concrete block fence constructed by stacking seven stages of concrete blocks. FIG. 5 is a diagram for explaining a procedure for constructing the external foundation structure.

  In constructing the exterior foundation C according to the present embodiment, first, the ground 20 is formed by cutting down the ground on which the target exterior is to be constructed. Next, a plurality of basic units A are arranged along a preset line in the earthwork 20. At this time, the side plate member 1 of the foundation unit A is arranged facing the outside of the exterior foundation C, and the side plate member 2 is arranged facing the inside of the exterior foundation C.

  After arranging a plurality of foundation units A along the target exterior foundation C, the mold 21 is formed at a position spaced along the side plate member 2 from the side plate member 2 by a preset distance.

  The base bar 22, the vertical bar 23, the main bar 24, and the distribution bar 25 are arranged using the penetrating part 4 and the connecting member 3 provided in the side plate member 2 of the base unit A, and the outer structure is disposed above the base unit A. The blocks 10 constituting the rising portion of the base C are loaded.

  In the case of the exterior foundation C, the base reinforcement 22 and the longitudinal reinforcement 23 may be different reinforcing bars or may be formed integrally. Further, the order of the work of placing the block 10 above the basic unit A and the order of the bar arrangement work are not particularly limited. After the bar arrangement work, the block 10 is loaded or the block 10 is loaded, In some cases, bar arrangement work is performed.

  Further, the order of the bar arrangement and loading work of the block 10 and the operation of configuring the mold 21 along the side plate member 2 of the base unit A is not particularly limited, and after the bar arrangement is performed, the mold 21 May be configured. In particular, when the root cutting width is narrow, it is possible to improve workability by arranging the base unit A in the groundwork 20, performing predetermined bar arrangement and loading the block 10, and then installing the formwork 21. is there.

  As described above, when the base unit A is arranged side by side in the groundwork 20 and the block 10 is loaded and the mold 21 is formed, the weight of the base unit A and the block 10 is directly transmitted to the groundwork 20. It will be supported by the local industry 20.

  Next, in a state where the vertical bars 23 are held upright, concrete is poured from above the block 10 and from above the side plate member 2 and the mold 21 of the base unit A, and the side plate members 1 and 2 of the base unit A. The space formed between and the space formed between the base unit A and the mold is filled with the concrete poured without a gap.

  It is possible to construct the exterior foundation C as described above. However, in this state, the placed concrete has high fluidity, and deformation or cracks may be formed when vibration or load is applied from the outside.

  For this reason, the concrete block 11 is loaded above the block 10 in a state in which the formwork 21 is held as it is after one day has passed after placing concrete on the exterior foundation C. At this time, each time a preset number of steps are loaded, the horizontal stripes 26 are arranged, and a concrete block 11 having a predetermined number of steps is loaded, thereby completing the concrete block 塀 D that is the target exterior.

  Conventionally, a curing period of 5 days or more is required after placing concrete in order to construct an external foundation, and it was not possible to load concrete blocks during this period. Then, after placing concrete, after one day, even if the work of loading concrete blocks is performed, the placed concrete is not adversely affected. Therefore, it is possible to shorten the external work.

  The foundation unit and exterior foundation structure according to the present invention can be used not only for the foundation of a concrete block fence but also as the foundation of a wall for earth retaining.

It is a figure explaining the composition of the basic unit concerning the 1st example. It is a figure explaining the fitting part of a foundation unit. It is a figure explaining the structure of the basic unit which concerns on 2nd Example. It is a figure explaining an exterior foundation structure when it is set as the concrete block gutter comprised by stacking seven steps of concrete blocks. It is a figure explaining the procedure of constructing an external foundation structure.

Explanation of symbols

A, B Foundation unit C Exterior foundation D Concrete block wall 1, 2 Side plate member 1a, 2a Small facet 1b, 2b Upper surface 1c Reinforcement rib 2c Bridge 3 Connecting member 4 Through part 5, 6 Fitting part 10 Block 11 Concrete block 20 Groundwork 21 Formwork 22 Base muscle 23 Longitudinal muscle 24 Main muscle 25 Power distribution muscle 26 Transverse muscle

Claims (2)

In the basic structure of concrete block fence formed using blocks,
The basic structure is
Two side plate members (1) and (2), which are directly supported by the pre-performed ground industry (20) and are arranged to face each other at equal intervals with a predetermined distance, than the side plate member height. A space is formed by being connected by a low connecting member (3), and a penetrating portion that penetrates in the thickness direction of the side plate member (1) or (2) in at least one of the two side plate members (1) or (2) ( 4) an exterior foundation unit (A) that is a block provided with two side plate members (1) and (2) of the exterior foundation unit, and a block (10) stacked on the upper surface of the exterior foundation unit;
Between the block (10) and the two side plate members (1), (2) of the exterior base unit (A), the side plate member (1) provided with a penetrating portion (4) from the exterior base unit (A). Or a predetermined space in a space formed between (2) and a formwork (21) disposed in the ground industry (20) at a predetermined distance along the side plate member (1) or (2) side. By arranging the reinforcing bars and placing concrete,
Integral reinforced concrete with the block (10) as a rising part, and the concrete placed in the space from the building foundation unit (A) to the formwork (21) including the building foundation unit (A) as a bottom plate The basic structure of concrete block fences, characterized in that it is a structure. Two side plate members (1) and (2) disposed opposite to each other with a predetermined distance from a pre-performed ground industry (20) are connected to the side plate members (1) and (2). A space is formed by being connected by a connecting member (3) lower than the height of the side plate member, and penetrates through at least one of the side plate members (1) or (2) in the thickness direction of the side plate member (1) or (2). A step of supporting the exterior foundation unit (A), which is a block provided with the portion (4), and supporting the exterior foundation unit (A) in the ground, and then the side plate member provided with the penetrating part (4) (1) or (2) arranging the formwork (21) on the ground (20) at a predetermined distance along the side;
Loading the block (10) constituting the foundation of the exterior on the upper surfaces of the two side plate members (1) and (2) of the exterior foundation unit (A);
Side plate member (1) provided with penetrating part (4) of exterior base unit (A) between block (10) and two side plate members (1), (2) of exterior base unit (A) Or a step of placing concrete by placing a predetermined reinforcing bar in a space formed between (2) and the formwork (21),
A concrete block fence construction method, wherein a concrete block (11) is loaded above the block (10) before a predetermined curing period elapses.

Images