Construction scheme for concrete crack treatment

Construction scheme for concrete crack treatment

According to the field survey, cracks appear in many parts of the concrete structure of the Shahu pump station, and most of them are concentrated in the pump room. Because the cracks have a great harmful effect on hydraulic structures, it is now decided to strengthen them after multiple studies. The specific construction scheme and process are as follows.

A special construction scheme for concrete crack treatment (Bid I)

The West Third Ring Interchange of Nongyu Road is an interchange set at the intersection of West Third Ring Road and Nongyu Road. It is an important traffic conversion node between the two expressways and an important part of the expressway network. The West Third Ring Road is an important section of the Third Ring Road in Zhengzhou City and an important traffic protection shell in the central urban area of Zhengzhou. The Agricultural Road is an urban expressway planned in the urban area of Zhengzhou that runs from east to west

Construction scheme for crack treatment of cast-in-place concrete floor

2.2 Design overview According to the house type and the number of floors, the floor thickness of each floor is different, and the floor thickness is between 100~150mm. 3、 Scope of Use This scheme is applicable to XXXXXXX cast-in-place floor crack treatment. 4、 The treatment scheme is selected according to Article 3.3.4 of GB50010-2002 Code for Design of Concrete Structures, reinforced concrete

Special construction scheme for crack treatment of cast-in-place concrete floor slab

According to the on-site quality inspection, some floors of residences and shops have cracks in varying degrees due to shrinkage and temperature changes caused by concrete condensation. After professional repair, such cracks can be used normally without affecting the structural safety.

Construction scheme for crack treatment of cast-in-place concrete floor slab (word format)

It is invested and constructed by XXXXX Real Estate Co., Ltd., supervised by Qingdao XXXXX Supervision Co., Ltd., and contracted by XXXXX Company. The total construction area is 80000 square meters, including XXXXX and supporting XXXXX. Since the construction period of the engineering structure is from April to September, it is a hot and windy season in Qingdao. At the same time, the construction team is not familiar with the climate in Qingdao, and cast-in-place buildings

Construction Scheme for Treatment of Cracks on Concrete Floor

According to the inspection, the project has local water seepage in axis 8~9 and axis 5~6 of the second floor beam slab. According to the field survey, the cracks are small, about 0.2~0.5mm long and about 0.3~0.8m long. Cracks in concrete are caused by many factors, such as load, temperature, shrinkage, corrosion, structural deformation, and most of them are not unilateral

Construction organization design scheme of cast-in-place concrete floor crack treatment

According to Article 3.3.4 of GB50010-2002 Code for Design of Concrete Structures, cracks in reinforced concrete structures are controlled within 0.3mm. Therefore, cracks<0.3mm are within the design code, and floor heating foamed cement is not treated before construction. If leakage is found after construction, low-pressure grouting (epoxy resin) shall be adopted for treatment; For cracks ≥ 0.3mm

Construction Scheme for Dam Concrete Crack Treatment of Civil Engineering Bid of Zhuji Yongning Reservoir Project

The main dam of civil engineering bid for Zhuji Yongning Reservoir Project is a concrete gravity dam, with a height of 32m, a crest length of 320m, a bottom width of 27m, and a crest width of 7.0m. It is divided into 16 dam sections, with the lowest foundation elevation of 18.00m and the crest elevation of 50.0m. The upstream face of the main dam adopts 1m thick C25W6F100 concrete anti-seepage panel, and the elevation of the downstream face is 28.0m

Construction scheme for concrete cold joint treatment

Cold joint refers to a kind of disease weak surface formed in the concrete structure due to the interruption of concrete pouring caused by unexpected factors during the concrete pouring process, and the interval time exceeds the initial setting time of the concrete, but is less than the final setting time of the concrete. It is a concept joint. The engineering quality of impermeable concrete wall structure depends not only on the excellent design and material performance, but also on

Construction scheme of a concrete crack repair

Project name: 17 #, 20 #, 23 #, 28 # houses Leakage repair Building area: 31200m2 Structure type: frame shear repair part: basement roof, raking surface tie plate, roof panel leakage repair

Construction scheme for concrete defect treatment

Content introduction III. Inspection items and defect classification of concrete structure quality defects Inspection (measurement) of concrete structure quality defects includes: inspection (measurement) of concrete structure appearance quality defects, inspection (measurement) of concrete structure internal quality defects, inspection (measurement) of concrete structure cracks, inspection (measurement) of concrete structure water stop defects, etc. Concrete structure quality and appearance quality defects

Method Statement for Treatment of Internal Wall Crack.doc

Method Statement for Internal Wall Crack Treatment.doc Method Statement for Internal Wall Crack Treatment.doc Method Statement for Internal Wall Crack Treatment.doc Method Statement for Internal Wall Crack Treatment.doc Method Statement for Internal Wall Crack Treatment.doc

Concrete construction scheme of a hospital

This paper is a concrete construction scheme of a hospital, which explains the construction scheme of the reconstruction project in detail from the aspects of project overview, construction deployment, construction preparation, main construction methods and measures, quality requirements, and precautions.

Analysis on concrete construction scheme

The concrete of this project is premixed concrete, mainly pumped. The basement part adopts automobile pump, and the high-rise uses concrete delivery pump and placing boom to transport concrete to the concrete pouring surface. The slump of concrete should be controlled at 16 ± 2cm. The initial setting time of concrete is 6 hours, the final setting time is 8 hours, and the initial setting time of bottom plate concrete is 8 hours, and the final setting time is

Treatment plan for concrete with cracks

1. The R&D building project of Plot B-3-6 in Zhangjiang Central District is composed of five office buildings (Building A-E) and the middle annular atrium (Building F). The five office buildings are respectively Building A-E, with 7 to 10 floors and a height of 28.3m to 44.3m. The frame shear structure is adopted. The middle annular atrium is the atrium of Building F, which is the spatial connection part of five office buildings, with 3 floors and a height of 4

Analysis of concrete construction scheme

For the 6 # internal mixing workshop project, this project is a multi-storey and bent building with a floor height of 7.2 meters, of which the interlayer between the 8 and 9 axes is 3.9 meters high, the second floor is 6.8 meters high, the third floor is 4.5 meters high, and the fourth floor is 5.1 meters high. The bent part belongs to cast-in-place cup mouth, and with the corbel column, it is equipped with two overhead cranes, the south span is a 10 t overhead crane, and the north span is a 20 t overhead crane

6 - Concrete construction scheme 708

This document is a factory's 6-concrete construction scheme 708, which is detailed and can be used for reference.

Concrete construction scheme of a project

Concrete construction scheme of a project Concrete construction scheme of a project Concrete construction scheme of a project

Construction scheme of a concrete road

Asphalt concrete pavement construction scheme Asphalt concrete pavement construction scheme The main line pavement surface of the contract section is designed to be 7cm thick grained asphalt concrete, 5cm medium grained asphalt concrete, and 4cm medium grained asphalt concrete. Plant mixing method of asphalt concrete mixing equipment is used for mixing, asphalt concrete paver is used for paving, and 14t double drum vibratory roller and wheel are used

Construction scheme of post cast strip concrete

Special scheme for concrete crack treatment

The early strength of concrete is high, and the actual strength of concrete within seven days can reach 90% of the theoretical strength of concrete. The higher the cement grade, the finer the fineness, and the higher the early strength, the greater the impact on concrete cracking. Due to its high elastic modulus and low tensile strength, the strain of concrete will easily reach the limit value under the action of small external and internal forces. When the compressive stress exceeds its compressive strength

Construction scheme for crack grouting of concrete floor slab

For Huiyuan Meilin Valley Project, some floors show visible cracks, which is preliminarily diagnosed as the formation of concrete shrinkage and creep and the influence of temperature effect. At present, the crack is in a stable state. According to the requirements of the owner, the cracks in the floor are reinforced by chemical grouting.

Construction Scheme for Reinforcement and Reinforcement of Floor Cracks

The cracks in the concrete floor slab will enter the air due to shrinkage, which will lead to corrosion of the steel bars and safe use of the structure,

Method Statement for Treatment of Concrete Appearance Defects

Content introduction 1. Cellular A. Phenomenon. Some parts of the concrete structure appear loose, less mortar, more stones, and voids between stones are similar to honeycombed holes. B、 Causes: (1) Improper concrete mix ratio or inaccurate measurement of water added to sand, gravel and cement materials, resulting in less mortar and more stones; (2) Concrete mixing time is not enough and it is not evenly mixed

Concrete crack repair construction scheme (word format)

Client: Technician Institute Project Department of Zhengtai Group Co., Ltd. Construction unit: Jiangsu Normal University of Technology Construction unit: Zhengtai Group Co., Ltd. Project name: 17 #, 20 #, 23 #, 28 # House leakage repair Building area: 31200m2 Structure type: frame shear repair part: basement roof slab, rake surface flat slab, roof slab leakage repair

[Cangzhou] Construction Scheme for Concrete Cushion Foundation Treatment

Project content: The foundation of this project is raft foundation, frame shear wall structure, with a total construction area of about 401000 square meters, including 6 residential buildings and commercial general contracting in 4 # - 9 # buildings of residential plot D, with a total construction area of about 130000 square meters, a building height of 97.5m, 2 underground floors, and 26-33 above ground floors;

Construction scheme for soft foundation treatment of wet jet grouting pile

Construction scheme for soft foundation treatment of wet jet grouting pile

Construction Scheme of Road Concrete Retaining Wall

C20 concrete retaining wall is designed as balance weight retaining wall and vertical shoulder wall. When the height of the retaining wall body is less than 3m, vertical shoulder wall is used. When the height of the retaining wall body is more than 3m, balance weight retaining wall is used. The horizontal spacing of the drain holes of the retaining wall is 2m, the longitudinal spacing is 3m, and the height of the retaining wall body is more than 3m. Drain holes are set up. Wall back backfilling in layers

Special construction scheme for soft foundation treatment

This paper introduces the concrete scheme of the construction of powder jet pile and drainage board to reduce the subgrade settlement in the construction scheme.

Roof foaming concrete construction scheme

This paper mainly introduces the properties, construction technology and acceptance standards of foamed concrete. Price comparison of foamed concrete is attached. This project is the expansion project of the staff canteen of Shaanxi Radio and Television Center. The project is located in Shaanxi Radio and Television Station, with a building area of 3750 square meters. The roof slope making layer and thermal insulation layer are foam concrete, with a thickness of 12~19.5 cm. It is poured in two times, and the bottom is insulated

Concrete construction scheme of a project

Reinforced concrete frame structure is the main structural form of multi-storey and high-rise buildings. According to the design, the frame structure construction includes cast-in-place structure construction, prefabricated assembly hoisting construction, and combination of prefabricated and cast-in-place construction. For cast-in-place reinforced concrete frame construction, columns, walls (shear walls, elevator shafts), beams, slabs (also prefabricated) and other components shall be poured on site according to the construction drawings.

Construction scheme for soft foundation treatment of a project

This project involves the replacement of soft foundation, including the excavation of silt, the arrangement of seepage ditches, the replacement of rubble, graded crushed stone and gravel, etc

Mass concrete construction scheme

5000m3, 2m thick mass concrete construction

Dubai Tower Concrete Construction Scheme

The world's latest concrete pumping height, concrete mixing and pumping scheme of Dubai Tower

Construction scheme of steel reinforced concrete column

This plan introduces the construction method of steel reinforced concrete structure in detail according to the specific situation of the site, and the problems needing attention in the construction process

Anti floating counterweight concrete construction scheme

Technical support, scheme provision and solutions for professional counterweight concrete, such as steel slag concrete, scrap iron concrete, anti radiation concrete, counterweight concrete, bridge counterweight concrete, steel box girder counterweight concrete, etc! It can reduce the use cost by 30-50%! The construction period is short and the quality is guaranteed. For example, 2000 cubic meters of counterweight concrete and one ground pump are expected to be completed in 5 days!

Treatment Plan for Cracks in Concrete Slab of Building 9 #

In order to ensure the quality of the project and eliminate the hidden dangers of engineering accidents, the following special repair scheme has been developed jointly by the construction unit, the design unit, the supervision unit and the construction unit for the local cracks in the 9 # building floor during the pre acceptance of the main body:

Construction scheme for mechanical finishing of concrete

The construction scheme and practical operation guide of concrete mechanical polishing have achieved good results. It is suitable for large factories, supermarkets and parking lots

Road asphalt concrete construction scheme

This project - the pavement reconstruction project of Ebian Jinkou River section of Provincial Highway 306, with a total length of 20.915km, starts from Ebian Yulin Bridge K0+000 and ends at Jinkou River Dadu River Bridge K20+915.15. The whole line of this section is paved with 40mm thick medium grained asphalt concrete AC-16F layer and 40mm thick modified asphalt concrete AC

Discussion on construction scheme of floor crack

The formwork support has not been calculated, or the horizontal and vertical tie rods are set unreasonably, which causes insufficient support steel. When the concrete strength has not reached a certain value, due to the influence of floor load, the deformation of formwork support increases, which makes the middle of the concrete floor sink, and the floor produces excessive deflection, causing cracks.