CN104089800A - Manufacturing method for test block of building material with seam - Google Patents
Manufacturing method for test block of building material with seam Download PDFInfo
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- CN104089800A CN104089800A CN201410287614.2A CN201410287614A CN104089800A CN 104089800 A CN104089800 A CN 104089800A CN 201410287614 A CN201410287614 A CN 201410287614A CN 104089800 A CN104089800 A CN 104089800A
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Abstract
The invention discloses a manufacturing method for a test block of a building material with a seam. A mold is used to manufacture the test block of the building material with the seam. The mold is composed by piecing an A mold and a B mold; the seam of the piecing portion is the same as that of the building material; the test block is coated by a seal material and is pressed into a test mold cavity of a standard impermeability tester according to a relevant specification; and water pressure when water penetrates the fracture surface of the test block is measured according to a relevant specification, so as to acquire the permeability of the seam. The manufacturing method has high practicability. The mold can be used repeatedly. The manufacturing method can be widely applied for permeability tests of construction seam, expansion seam and temperature cracks of various building materials. The manufacturing method provides effective means for the permeability tests of various building material seams, and has significance for improving the quality of building engineering and prolonging durable life.
Description
Technical field
The invention belongs to civil engineering work material antiseepage field, relate in particular to a kind of method for making of the building materials test block with seam.
Background technology
Building materials seam is very general in civil engineering work, but has brought larger negative effect to engineering waterproofing, antiseepage because its anti-permeability performance is poor.In subterranean tunnel engineering, concrete lining, often from construction joint seepage underground water, brings harm to the underground environment of underground works; Normal employing circular arc seam between diaphram wall, but the phenomenon that seeps water after Practical Project discovery underground excavation is difficult to stop; In mass concrete construction, the formation temperature shrinking cracks due to inside and outside temperature difference, in the time that crack connects, just there will be infiltration phenomenon; Etc..If understood the permeance property of these building materials seams, just may determine selectively the form of seam.Therefore the waterproof that the present invention is construction work, the design of antiseepage and construction provide good means of testing.
Because the test block of indoor impermeability test is very little, in test block, reconstruct is very difficult to on-the-spot similar seam, therefore the impermeability test of building materials seam cannot be carried out always, engineering is often determined its permeance property according to experience, bring very large blindness to engineering design and construction, a lot of engineerings are often built up and have been occurred soon Seepage, thereby have reduced construction quality, have affected the endurance quality of buildings.Therefore develop a kind of method for making of the building materials test block with seam to improving construction engineering quality, extend endurance life significant.
Summary of the invention
Goal of the invention: the object of the invention is, in order to solve the deficiencies in the prior art, provides a kind of method for making of the building materials test block with seam.
Technical scheme: the method for making of a kind of building materials test block with seam of the present invention, use the building materials test block of Mold Making band seam, described mould is put together by A mould, B mould two parts, and amalgamation part is identical with the seam of building materials.
Wherein, the method for making of described test block is:
(1) in mould, serve as the half of test block seam with A mould, make second half test block C of building materials seam;
(2) in mould, serve as second half of test block seam with B mould, make second half test block D of building materials seam;
(3) after building materials solidifies, two parts test block C of described building materials seam, together with test block D amalgamation, is processed by Practical Project requirement, form the complete building materials test block containing seam;
(4) test block is coated with to encapsulant, is pressed into by relevant specification in the test die cavity of standard impermeability test instrument;
(5) water pressure while pressing the infiltration of relevant specification test test block section, thus know the permeance property of this seam.
Wherein, described seam is preferably zigzag, crenation, circular-arc, trapezoidal shape, Z-shaped shape, S shape.
Beneficial effect: the method for making of a kind of building materials test block with seam of the present invention, Mold Making is simple, and material source is extensive, cheap, can reuse.Seam test block making and test method are simple, impermeability test can utilize existing equipment to carry out, without adding extra testing apparatus, utilize original impermeability test instrument, test the data obtained is with a high credibility, practical, mould is reusable, can be widely used in the permeance property test of various building materials construction joints, expansion joint, thermal cracking.For the permeance property test of various building materials seams provides effective means, to improving construction engineering quality, to extend endurance life significant.
Brief description of the drawings
Fig. 1 is mould structure schematic diagram of the present invention;
Fig. 2 is test block structural representation of the present invention;
Fig. 3 is the cross-sectional view with B Mold Making test block D of the present invention;
Fig. 4 is the cross-sectional view by test die cavity test test block permeance property of the present invention.
Fig. 5 is seam preferred mold structural representation of the present invention.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment only, for explaining the present invention, does not form limiting the scope of the present invention.
The method for making of a kind of building materials test block with seam as shown in Fig. 1,2,3,4,5, first use producing wood ladder shaped connecting seam mould 1, the building materials test block 4 that uses mould 1 to make with seam, described mould 1 is put together by A mould 2, B mould 3 two parts, amalgamation part is identical with the seam of building materials, and described seam is preferably zigzag, crenation, circular-arc, trapezoidal shape, Z-shaped shape, S shape.
The method for making that contains the concrete test piece 4 of seam is:
(1) in mould 7, serve as the half of test block seam with A mould 2, make second half test block C5 of building materials seam;
(2) in mould 7, serve as second half of test block seam with B mould 3, make second half test block D6 of building materials seam, mould 1 smooth surface, guarantee concreting complete after the demoulding easy, when cast, be often poured into that 2～3cm is thick to vibrate one time, cast finishes to vibrate one time again, vibrates for every time and should be not less than 15 times, and the test block 4 after casting complete is put into fog room maintenance seven days together with mould 1 and mould 7;
(3) after building materials solidifies, by two parts test block C5 of described building materials seam together with test block D6 amalgamation, process by Practical Project requirement, form the complete building materials test block 4 containing seam, test block 4 is put into standard curing room and carries out maintenance, curing time generally carries out according to the requirement of engineering and building materials, at least maintenance 28 days of concrete material;
(4) test block 4 is coated with to encapsulant, is pressed into by relevant specification in the test die cavity 8 of standard impermeability test instrument;
(5) water pressure while pressing the infiltration of relevant specification test test specimen section, thus know the permeance property of this seam.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. a method for making for the building materials test block with seam, is characterized in that: use the building materials test block of Mold Making band seam, described mould is put together by A mould, B mould two parts, and amalgamation part is identical with the seam of building materials.
2. the method for making of a kind of building materials test block with seam according to claim 1, is characterized in that: the method for making of described test block is:
(1) in mould, serve as the half of test block seam with A mould, make second half test block C of building materials seam;
(2) in mould, serve as second half of test block seam with B mould, make second half test block D of building materials seam;
(3) after building materials solidifies, two parts test block C of described building materials seam, together with test block D amalgamation, is processed by Practical Project requirement, form the complete building materials test block containing seam;
(4) test block is coated with to encapsulant, is pressed into by relevant specification in the test die cavity of standard impermeability test instrument;
(5) water pressure while pressing the infiltration of relevant specification test test block section, thus know the permeance property of this seam.
3. the method for making of a kind of building materials test block with seam according to claim 1 and 2, is characterized in that: described seam is preferably zigzag, crenation, circular-arc, trapezoidal shape, Z-shaped shape, S shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410287614.2A CN104089800A (en) | 2014-06-24 | 2014-06-24 | Manufacturing method for test block of building material with seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410287614.2A CN104089800A (en) | 2014-06-24 | 2014-06-24 | Manufacturing method for test block of building material with seam |
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| CN104089800A true CN104089800A (en) | 2014-10-08 |
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| CN201410287614.2A Pending CN104089800A (en) | 2014-06-24 | 2014-06-24 | Manufacturing method for test block of building material with seam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982183A (en) * | 2018-08-07 | 2018-12-11 | 宁波联城住工科技有限公司 | A kind of preparation method and test method, mold of concrete sample |
| CN113959921A (en) * | 2021-09-23 | 2022-01-21 | 宁波市杭州湾大桥发展有限公司 | Device and method for testing impermeability and durability of precast concrete joint |
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Patent Citations (6)
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| DE2934838A1 (en) * | 1979-08-29 | 1981-03-19 | Georges Rio de Janeiro Ruegner | Concrete block mould box - comprises individual cast steel moulds screwed to framework |
| CN1152653A (en) * | 1996-11-08 | 1997-06-25 | 温克义 | Concrete composite pouring forming technology |
| CN1600811A (en) * | 2003-09-24 | 2005-03-30 | 谢海军 | Formula for plastic store on lawn and preparation method |
| EP1838476A1 (en) * | 2004-12-18 | 2007-10-03 | Saint-Gobain Pam | A cast article and a method of its manufacture |
| CN101200099A (en) * | 2006-12-14 | 2008-06-18 | 天津市世纪东方建筑景观雕塑技术开发中心 | Formulation and fabricating process of imitating Japanese roof tile |
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| 许宏发 等: "混凝土接缝抗渗试验方法研究", 《四川大学学报（工程科学版）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982183A (en) * | 2018-08-07 | 2018-12-11 | 宁波联城住工科技有限公司 | A kind of preparation method and test method, mold of concrete sample |
| CN113959921A (en) * | 2021-09-23 | 2022-01-21 | 宁波市杭州湾大桥发展有限公司 | Device and method for testing impermeability and durability of precast concrete joint |
| CN113959921B (en) * | 2021-09-23 | 2023-09-26 | 宁波市杭州湾大桥发展有限公司 | Device and method for testing impermeability and durability of precast concrete joint |
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Application publication date: 20141008 |