CN1587547A - Composite manhole cover and its producing method - Google Patents

Composite manhole cover and its producing method Download PDF

Info

Publication number
CN1587547A
CN1587547A CN 200410050225 CN200410050225A CN1587547A CN 1587547 A CN1587547 A CN 1587547A CN 200410050225 CN200410050225 CN 200410050225 CN 200410050225 A CN200410050225 A CN 200410050225A CN 1587547 A CN1587547 A CN 1587547A
Authority
CN
China
Prior art keywords
well lid
magnesium
horizontal bar
bar
shear
Prior art date
Application number
CN 200410050225
Other languages
Chinese (zh)
Inventor
国兴玉
Original Assignee
国兴玉
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 国兴玉 filed Critical 国兴玉
Priority to CN 200410050225 priority Critical patent/CN1587547A/en
Publication of CN1587547A publication Critical patent/CN1587547A/en

Links

Abstract

The present invention relates to building material, and composite manhole cover and its production process. The technological scheme includes mixing solid magnesia and modified magnesium chloride solution with modifier to form magnesia concrete cementing slurry; molding the magnesia concrete cementing slurry, fiber fabric and shearing force steel rib skeleton one layer by one layer; curing and demolding to form the composite manhole cover. The modifier includes zinc oxide, ammonium chloride, ferrous sulfate, hydrochloric acid, trisodium phosphate and urea formaldehyde resin. The produced has compression strength up to 175 KN, water absorption of about 15 %, no powdering and surface halide accumulation after water soaking, and may be used as cover for drainage well and connector.

Description

A kind of combined manhole cover and manufacture method thereof
Technical field
The present invention is to provide a kind of combined manhole cover and the manufacture method thereof of building materials field.
Background technology
Before combined manhole cover of the present invention and method thereof proposed, the well lid that is used for plumbing had cast iron to make by the mode of casting, and also the useful metal material is made flange and skeleton and recharged that the concrete mortar makes, and also useful concrete and cloth are compounded.Wherein, castiron well lid cost height, consumes energy is big, and loses easily.Metallic framework and concrete are filled the well lid of making, and metal consumption is bigger, and cost is also higher, and intensity is lower.The compounded well lid of concrete and fibrous material is easily efflorescence again, and easy deliquescence and reduce intensity, even causes the accident of subsiding.How to seek a kind of intensity height, and cost is low, and humidity, not efflorescence, halogenation, the well lid that is difficult for losing again are technical problems to be solved.
Summary of the invention
In order to overcome the fragile and low shortcoming of intensity of well lid that existing concrete and fiber composite method are produced, the present invention proposes a kind of combined manhole cover and manufacture method thereof, and made well lid has humidity, not efflorescence, halogenation, intensity height, the characteristics that cost is low.
The technical scheme that technical solution problem of the present invention is adopted is: solid-state material of magnesia and the modified chlorinated magnesium solution of dosing modifier are mixed into the magnesium concrete cementitious slurry, after in mould, successively smearing the slip and the fibrous mesh cloth that paves formation surface layer, place the shear reinforcement skeleton, fiberfill fibers bundle and slip in die cavity are until the mould upper limb.After certain hour solidified, the demoulding became the well lid finished product.
Modifier has zinc oxide, ammonium chloride, ferrous sulfate, hydrochloric acid, tertiary sodium phosphate, Lauxite.
Zinc oxide in the modifier, ammonium chloride and magnesium chloride solution form double salt, improve the deliquescence characteristic of magnesium chloride, and ferrous sulfate can form crystalline solid with magnesia, and hydrochloric acid plays the effect of adjusting acid-base value, and tertiary sodium phosphate plays buffering and waterproof effect.Above modifier participates in magnesium chloride and magnesian curing reaction, and improves reaction condition, reacts fully with complete, formed magnesium hydroxide crystalline solid lattice is even, deliquescence and segregation phenomenon do not appear in the intensity height, have guaranteed physical and chemical performance stable of finished product solid shaped bodies.Have humidity, not efflorescence, the characteristic of halogenation.
The Lauxite of being dosed in the modifier can play glued effect, forms organic and inorganic composite structure with magnesia and the formed crystalline solid of magnesium chloride, and strength characteristics is improved, and plays the effect that improves bulk strength and toughness.
Well lid by the inventive method is made owing to dosed cloth and fiber bundle in well lid, has improved the toughness of well lid.Owing in well lid, dosed the shear reinforcement skeleton, improved rupture strength.Owing to dosed modifier in the magnesium concrete in well lid, improved reaction condition and response intensity, improved the overall mechanical strength and the physicochemical property of well lid.
By experiment with detect proof, the compressive strength of the well lid made from the inventive method reaches 175KN, water absorption rate is 15%, do not produce efflorescence after the water logging and return the halogen phenomenon, surpass national standard, can replace existing compound well lid fully, carried out practical application.
Description of drawings
Fig. 1 is a well lid sectional structure schematic diagram of the present invention
Fig. 2 is a shear reinforcement skeleton structure diagram of the present invention
Fig. 3 is the shear bar shape figure of shear reinforcement skeleton of the present invention
Among Fig. 1,2,3,1. well lid body, 1A. well lid card edge, 2. shear reinforcement skeleton, 2A. cage of reinforcement circle, 2B. horizontal bar, 2C. erects muscle, 2BC1. limit horizontal bar, 2BC2. shear bar, horizontal bar at the bottom of the 2BC3., 3A. fibrous mesh cloth, the 3B. fiber bundle, 4. concrete slurry is 5. opened mouth.
The specific embodiment
The preparation of modified concrete slip:
Get 10 kilograms of the magnesium chloride solution of Baume degrees between 25~32, add each 50~200 gram of zinc oxide, ammonium chloride, ferrous sulfate, tertiary sodium phosphate, hydrochloric acid and Lauxite, stirring becomes modified chlorinated magnesium solution.
Get content of magnesia at 60~85% light-burning magnesium powder as the solid-state material of magnesia.
Above modified chlorinated magnesium solution is joined in the solid-state material of magnesia, mix and stir, become concrete slurry containing magnesium after reaching certain denseness.
The preparation of shear reinforcement skeleton:
With the bar cutting of certain diameter, carry out warpage by planform shown in Figure 3, form limit horizontal bar 2BC1, shear bar 2BC2, end horizontal bar 2BC3.Press the structure of Fig. 2, will have the place, crosspoint of the horizontal bar 2B of Fig. 3 structure and perpendicular muscle 2C respectively and weld with the junction of cage of reinforcement circle 2A or colligation is connected in one, horizontal bar and perpendicular muscle can be linear or shaped form.The brushing resin forms topping on cage of reinforcement.
Bottom at the well lid mould brushes release agent, then, brushing one deck concrete slurry containing magnesium, the fibrous mesh cloth that on slip, paves, and then brushing concrete slurry containing magnesium, the grid cloth that paves again until reaching certain thickness, is generally 3~10 layers.On the slip Gitterfasern layer of institute's place mat, smear concrete slurry containing magnesium, and fiberfill fibers bundle, fill successively, when reaching certain thickness, cage of reinforcement is embedded among the mould, continues fill concrete fiber bundle feed pulp layer again, until reaching preset thickness, through after the natural curing of certain hour, the demoulding forms the well lid with Fig. 1 structure.
Well lid card represented among Fig. 1 is along being to be used for the usefulness that well lid is installed the well head fixing, and the unlatching mouth that runs through well lid is the usefulness that is used to mention well lid.
Embodiment
Make the draining well lid with the inventive method
The prescription of modified chlorinated magnesium solution:
Get Baume degrees at 30 magnesium chloride solution, in solution, add zinc oxide, ammonium chloride, ferrous sulfate, tertiary sodium phosphate, hydrochloric acid, each 100 gram of Lauxite, stir.
The selection of the solid-state material of magnesia:
The selective oxidation content of magnesium 85%, granularity is at 300 purpose light-burning magnesium powders.
The preparation of shear reinforcement skeleton:
The employing diameter is that the reinforcing bar of 6mm passes through to cut off, and warpage is made the shear reinforcement skeleton of Fig. 2 structure, and smears epoxy resin thereon, forms topping.
Well lid is made:
Make the present embodiment well lid by described manufacture process of the specific embodiment and step.
Adopt the inventive method can make circular or square well lid, be used for the top cover of feed well, catch pit and container etc.

Claims (5)

1, a kind of combined manhole cover and manufacture method thereof, solid-state material of magnesia and magnesium chloride solution are mixed into the magnesium concrete cementitious slurry, composite filled and add reinforcing bar and make well lid with fibrous material in mould, it is characterized in that: in magnesium chloride solution, contain zinc oxide, ammonium chloride, ferrous sulfate, hydrochloric acid, tertiary sodium phosphate, the modifier that Lauxite constitutes, to be added with that the modified chlorinated magnesium solution of modifier and concrete slurry containing magnesium that the solid-state material of magnesia is mixed and made into are successively smeared and after the fibrous mesh cloth that paves forms surface layer in mould, place the shear reinforcement skeleton, fiberfill fibers bundle and slip in die cavity, until the mould upper limb, after solidifying, the demoulding becomes the well lid finished product.
2, well lid according to claim 1 is characterized in that: modified chlorinated magnesium solution is to be added with zinc oxide, ammonium chloride, ferrous sulfate, tertiary sodium phosphate, hydrochloric acid and Lauxite in Baume degrees is 10 kilograms of magnesium chloride solutions between 25~32 each 50~200 is restrained.
3, well lid according to claim 1 is characterized in that: shear reinforcement skeleton (2) is interconnected to constitute with perpendicular muscle (2C) by cage of reinforcement circle (2A) and horizontal bar (2B).
4, well lid shear reinforcement skeleton according to claim 3, it is characterized in that: horizontal bar (2B) and perpendicular muscle (2C) planform are: be connected with shear bar (2BC2) respectively at the two ends of end horizontal bar (2BC3), be connected with limit horizontal bar (2BC1) respectively at the two ends of shear bar, horizontal bar two ends, limit are connected with cage of reinforcement circle (2A) respectively, and horizontal bar and perpendicular muscle can be linear or shaped form.
5, well lid cage of reinforcement according to claim 3 is characterized in that: the reinforcing bar outside at the shear reinforcement skeleton is coated with topping.
CN 200410050225 2004-08-10 2004-08-10 Composite manhole cover and its producing method CN1587547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200410050225 CN1587547A (en) 2004-08-10 2004-08-10 Composite manhole cover and its producing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200410050225 CN1587547A (en) 2004-08-10 2004-08-10 Composite manhole cover and its producing method

Publications (1)

Publication Number Publication Date
CN1587547A true CN1587547A (en) 2005-03-02

Family

ID=34602199

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200410050225 CN1587547A (en) 2004-08-10 2004-08-10 Composite manhole cover and its producing method

Country Status (1)

Country Link
CN (1) CN1587547A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103122643A (en) * 2013-03-17 2013-05-29 韩子辉 Nodular cast iron steel fiber well lid
CN106747159A (en) * 2016-12-17 2017-05-31 李洪中 The preparation method of bombax cotton and magnesium zinc complex cement well lid
CN108625401A (en) * 2018-05-21 2018-10-09 中国城市建设研究院有限公司 The underground pipe gallery closed cover board of fiber-reinforced composite concrete protection

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103122643A (en) * 2013-03-17 2013-05-29 韩子辉 Nodular cast iron steel fiber well lid
CN103122643B (en) * 2013-03-17 2015-10-07 韩子辉 Nodular cast iron steel fiber well lid
CN106747159A (en) * 2016-12-17 2017-05-31 李洪中 The preparation method of bombax cotton and magnesium zinc complex cement well lid
CN108625401A (en) * 2018-05-21 2018-10-09 中国城市建设研究院有限公司 The underground pipe gallery closed cover board of fiber-reinforced composite concrete protection

Similar Documents

Publication Publication Date Title
CN100429362C (en) Reinforced concrete stereo bearing structure floorslab
CN105421652B (en) A kind of composite thermo-insulating wall board
CN101343871B (en) Composite pile with high permanent stability protection layer and its production and construction method
CN2561848Y (en) Formwork component for steel bar reinforced concrete
CN1329601C (en) Hollow form component
CN100381657C (en) Thin-walled case for filling reinforced concrete
CN102910882B (en) Fiber-reinforced alkali-activated cementing material and preparation method thereof
CN106760207A (en) A kind of preparation method of TRC templates reinforced column
FI115046B (en) Hydraulic solidifying binder mixture and process for its preparation
CN85107041A (en) The manufacturing process of foamed concrete
CN101041989A (en) Reinforced bar concrete solid load-carrying structural storied building cover
CN102153321B (en) High-titanium slag well cover and production method thereof
CN109098332A (en) A kind of novel contignation and its method of construction towards marine environment
CN1884183A (en) High-strength waterproof gypsum brick and method for preparing same
CN101602567A (en) Waste mud solidification processing method based on polypropylene acetamide
CN2417222Y (en) Fiber reinforced thin wall type element for filling steel bar reinforced concrete floor structure
CN101591884A (en) A kind of baking-free water-permeable brick and manufacture method thereof
CN1326796C (en) Underwater antidispersion concrete admixture for building
CN101117000B (en) Method for preparation of composite hollow tile for ornamenting
CN108086582A (en) A kind of prefabricated assembled concrete wallboard for fabricated construction
CN1792969A (en) Sandwich wall board made by straw cement composite material and mfg. process thereof
CN100560898C (en) A kind of reinforcing-bar three-dimensional bearing roof
CN101059020A (en) Wall heat insulation building blocks and production method thereof
CN105481272A (en) Manufacturing methods of geopolymer and precursor thereof, product and application
CN101812884B (en) Inorganic flame retardant composite box for filling hollow floorslab and manufacturing method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication