External storage method maintenance device of on sea large volume concrete and its method
A large-volume concrete and concrete technology, applied in the direction of ceramic molding machines, manufacturing tools, etc., can solve the problems of complex construction process, difficult operation, heavy workload, etc., and achieve the goal of speeding up the construction progress, improving efficiency, and reducing workload Effect
Inactive Publication Date: 2007-12-05
SHANGHAI CONSTR BUILDING MATERIALS TECH GRP CO LTD
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] After concrete is poured and tamped, it usually needs to be cured, especially for the curing method of large-volume concrete in the sea, which will directly affect the quality and life of the concrete. The current curing method is a conventional method of internal dispersion and external storage, and the construction process is complicated. It is not easy to operate on the sea, and requires more cooling water pipes and supporting cooling fresh water and circulation system equipment, etc. The workload of the cap platform construction is heavy, and it cannot be adapted to offshore bridges and ports such as the 8200m main navigation pylon of the Donghai Bridge. 3 The engineering needs of large-volume concrete such as marine concrete need to be improved urgently
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0026] Adopting the device of Fig. 1 and Fig. 2 carries out the method for concrete cap 3 maintenance and comprises the steps:
[0027] After the concrete cap is poured and tamped, cover the concrete top surface of the cap with plastic film and sack in sequence, and turn on the heating device installed in the outer large airtight cabin 1 or / and inner cavity 2, and control the temperature difference between the inside and outside of the concrete cap at 25°C , the curing time is 14 days.
[0028] The temperature calculation results and actual measurement results of the measuring points are shown in Figure 3. In the figure, curve 1 is the measured result, and curve 2 is the calculated result.
[0029] The test results show that the method of the invention not only has a simple structure and is convenient to operate, but also the quality of the concrete cap can completely reach the specified index.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| width | aaaaa | aaaaa |
Login to View More
Abstract
A facility for curing the large-volume concrete on the sea by external accumulation method is composed of bearing concrete platform, sleeving steel case with open top and containing the sealed large peripheral cabin and internal cavity, the sealed small cabin formed by the bearing platform and the inner surface of internal cavity, heating unit, sealing material on the top of sleeving steel case, the insulating layer on the surface of bearing platform, and sealing plate on the top of sealed small cabin. Its caring method is also disclosed.
Description
technical field [0001] The invention relates to a large-volume concrete curing device and method, in particular to an offshore large-volume concrete curing device and method. Background technique [0002] After concrete is poured, it usually needs to be cured, especially for the curing method of large-volume concrete in the sea, which will directly affect the quality and life of the concrete. The current curing method is a conventional method of internal dispersion and external storage. It is not easy to operate on the sea, and requires more cooling water pipes and supporting cooling fresh water and circulation system equipment. The workload of the cap platform construction is large, and it cannot be adapted to offshore bridges and ports such as the 8200m main navigable pylon of the Donghai Bridge. 3 The engineering needs of large-volume concrete such as marine concrete need to be improved urgently. Contents of the invention [0003] The technical problem to be solved by ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B28B11/24
Inventor 顾建平张越金立坚张明生
Owner SHANGHAI CONSTR BUILDING MATERIALS TECH GRP CO LTD