We have a variety of construction methods. Feel free to contact us.
The concrete exterior wall repair work is the repair of deteriorated concrete and mortar walls of condominiums, tenant buildings, commercial buildings, and other structures.
The defect repair work is a method of removing deteriorated concrete and mortar areas (between 2mm to 20mm deep) and repair cracks, gaps and pits with lightweight mortar, etc.
*Please note that surface painting is not included.
The spalling defect repair method is to remove the deteriorated concrete and mortar (from 20mm to 40mm deep), remove the rust from the reinforcing steel bars, apply anti-corrosion treatment, and restore with lightweight mortar, etc.
*Please note that surface painting is not included.
The lifted paint repair method is a method of removing lifted paint and restoring the existing paint with a gap correction material, etc.
*Paint restoration is not included. It does not include the restoration of paint, etc.
The crack repair method (cylinder method) is a method to inject epoxy resin (packed in a cylinder form) into cracks of concrete structures automatically and continuously at low pressure and low speed.
*Paint restoration is not included. It does not include the restoration of paint, etc.
The crack repair method (U-cut seal filling method) is a method of repairing cracks in concrete or mortar by cutting a U-shape with a diamond cutter, etc., filling the crack with flexible epoxy resin or elastic sealants, and forming the cut surface with epoxy resin mortar, etc. The cut-out surface is then molded with epoxy resin mortar, etc.
*Paint restoration is not included. It does not include the restoration of paint, etc.
The lifted mortar injection repair work is a method of bonding the mortar finish to the frame by using epoxy resin injection material and stainless-steel pins in areas where the mortar has lifted, such as on exterior walls.
*Paint restoration is not included. It does not include the restoration of paint, etc.
The concrete slab, pier, and tunnel repair work involves removing deteriorated sections of concrete, removing rust from reinforcing bars, performing anti-corrosion treatment, restoring with lightweight mortar, etc., and then attaching fiber sheets to prevent slipping and reinforcement.
The cross-sectional restoration method is a method of removing deteriorated concrete sections (from 20mm to 80mm deep), removing rust from reinforcing bars, performing rust-proofing treatment, and restoring with lightweight mortar, etc.
*Paint restoration is not included. It does not include the restoration of paint, etc.
The crack repair method (cylinder method) is a method to inject epoxy resin (packed in a cylinder form) into cracks of concrete structures automatically and continuously at low pressure and low speed.
*Paint restoration is not included. It does not include the restoration of paint, etc.
The spalling prevention method is a method of bonding continuous fiber sheets or mesh or protecting them with a load-resistant and stretchable coating film.
The continuous fiber sheet adhesive method is a reinforcement method that improves bending and shear resistance by bonding carbon fiber sheets, aramid fiber sheets, glass fiber sheets, etc. to the tensile surface of reinforced concrete using epoxy resin, etc., and integrating them or wrapping them around the concrete.
The surface coating method is a method to improve the durability of concrete structures by coating the surface with resin or polymer cement materials to form a coating that prevents salt, carbon dioxide, and other deterioration factors from entering the structure.
The surface impregnation method is a method to improve the durability of concrete by applying an impregnating coating agent to the concrete surface to modify the structure of the concrete surface layer.
In RC roll-up reinforcement, the outer circumference of an existing column is reinforced by rolling it up with reinforced concrete of about 25 cm thickness. To prevent buckling of the reinforced structure, an intermediate penetration is sometimes applied to restrain the reinforcing bars by allowing PC steel rods to penetrate through.
Surface preparation word involves removing adhesions and fragile areas on the concrete surface using a disk grinder, water jet, etc.
PC steel rods to penetrate the frame to restrain the reinforcing bars.
Anchors are installed in footings and frames.
Assemble rebar. Joints are made by gas pressure welding, mechanical joints, flare welding, etc.
Assemble rebar. Joints are made by gas pressure welding, mechanical joints, flare welding, etc.
Concrete is placed by turning.
In concrete pumping, truck agitators (ready-mixed concrete trucks) transport fresh concrete to the construction site. Concrete pumping is the work of pumping and placing fresh concrete into a specified formwork by hydraulic or mechanical pressure using a concrete pump.
Concrete pumping is a method of pumping concrete through piping by means of a pump truck, etc.
The concrete surveying work is the investigation of deteriorated parts of concrete structures such as condominiums, tenant buildings, commercial buildings, slabs, piers, tunnels, and so on.
The visual inspection is the most basic method of structural surveying and inspection. It is an investigation method to visually observe the damage and deterioration of the concrete surface, changes in the overall structure, and the surrounding environmental conditions, and to assess the situation using simple instruments.
The percussion inspection is an inspection method in which the concrete surface is lightly tapped with a hammer or a hammering rod, and the sound quality of the tapping can be used to determine the state of deterioration near the surface of the concrete.
This is an injection method or formwork pouring method that uses no-shrinkage materials (no-shrinkage grout or no-shrinkage mortar). Applications include seismic reinforcement (steel plate jacketing, steel brace gap filling) and machine foundation anchor filling. Shrink-free materials exhibit no shrinkage (no loss of volume) in a nearly sealed container where the material is restrained, enhancing adhesion and integrity at the filling area.
In the no-shrink mortar injection method, a no-shrink mortar with excellent fluidity is injected into the formwork, enabling filling to every corner of the injection point. After injection, there is no bleeding and no shrinkage, so the mortar has excellent adhesion and can be integrated with the structure to restore a durable structure.
The use of asbestos and products, etc. containing asbestos was banned on September 1, 2006 in Japan because inhalation of asbestos dust may cause lung cancer, mesothelioma, and other serious health problems. Prior to this, asbestos was used mainly as a building material in many buildings and other structures. Asbestos may be dispersed due to deterioration or damage of building materials, or due to demolition or renovation of buildings, etc., and there is concern about human exposure and associated health hazards. Therefore, the Ordinance on Prevention of Asbestos Hazards (Ordinance of the Ministry of Health, Labour and Welfare of Japan, Article 21, 2005) stipulates that a "preliminary survey" be conducted on whether or not building materials containing asbestos are used during demolition and renovation of buildings, based on design documents, visual inspection, and analysis.
The "preliminary survey" is to be conducted by "a person who has a certain level of knowledge about asbestos and is able to make accurate judgments," which refers to "a certified surveyor of building materials containing asbestos in specified buildings" based on the "Training and Registration Rules for Surveyors of Building Materials Containing Asbestos" jointly administered by the Ministry of Land, Infrastructure, Transport and Tourism of Japan, the Ministry of the Environment of Japan and the Ministry of Health, Labor and Welfare of Japan.
The required number of 50mm x 50mm samples will be taken.
You will receive a preliminary report in one to two weeks. *Preliminary results can be delivered as soon as the next day, depending on the service plan.
We can deliver the report in about one week after the preliminary results.
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