CN1341507A - Partition panel made of straw and its preparation method - Google Patents
Partition panel made of straw and its preparation method Download PDFInfo
- Publication number
- CN1341507A CN1341507A CN 01108764 CN01108764A CN1341507A CN 1341507 A CN1341507 A CN 1341507A CN 01108764 CN01108764 CN 01108764 CN 01108764 A CN01108764 A CN 01108764A CN 1341507 A CN1341507 A CN 1341507A
- Authority
- CN
- China
- Prior art keywords
- straw
- partition plate
- bittern
- utilizes
- glass fibre
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000010902 straw Substances 0.000 title claims abstract description 35
- 238000005192 partition Methods 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 46
- 241001131796 Botaurus stellaris Species 0.000 claims abstract description 29
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 23
- 239000003365 glass fiber Substances 0.000 claims abstract description 22
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 13
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract 3
- 229910052736 halogen Inorganic materials 0.000 claims description 16
- 150000002367 halogens Chemical class 0.000 claims description 16
- 239000003085 diluting agent Substances 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 14
- 239000003607 modifier Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 12
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims description 9
- 239000011790 ferrous sulphate Substances 0.000 claims description 9
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 9
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 9
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 7
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 7
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 7
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000005642 Oleic acid Substances 0.000 claims description 7
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 7
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 7
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 7
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 6
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 claims description 4
- 208000034189 Sclerosis Diseases 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000006253 efflorescence Methods 0.000 abstract 1
- 206010037844 rash Diseases 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
Landscapes
- Glass Compositions (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Paper (AREA)
Abstract
The present invention discloses a partition board made of straw and stalks and its preparation method. The composition of said partition board contains (wt%) 10%-30% of straw and stalks, 25%-36% of light burned magnesia, 30%-40% of bittern, 1%-2.5% of modifying agent, 1%-2% of glass fibre and 5%-10% of reinforcing agent. The compression strength of said partition board is greater than 20 MPa, its softening coefficient is greater than 0.8 and its dry shrinkage rate is less than 0.6 mm/M. It can overcome the defects of moisture absorption, efflorescence, deformation, etc. and its production cost is low. It can be used in the building of high-rise.
Description
Affiliated field:
The present invention relates to a kind of partition plate that straw makes and preparation method thereof that utilizes.
Background technology:
Relevant straw and cementitious composite materials for wall in the prior art, as Chinese patent CN-91109899, CN-87103594, the CN-99115722 report generally is to be inserts with the straw, uses the organic or inorganic binding agent, heat, add and be pressed into, in CN-87103594, the binding agent of use is a Lauxite, and severe toxicity is arranged; The binding agent that uses among the CN99115722 is the isocyanates resinoid, cost height, and the pressurization of all need heating of above-mentioned two kinds of methods; CN-91109899 uses inorganic binder, adds and also needs the 2MPa/cm that pressurizes man-hour
2More than.
Summary of the invention:
At above-mentioned defective, the invention provides a kind of partition plate made from straw and preparation method thereof, be to be inserts with the straw, magnesia unslacked and bittern are binding agent, glass fibre is a flexibilizer, handles a kind of environmental protection partition plate of moulding at normal temperatures and pressures through modification, its compression strength is greater than 20MPa, coefficient of softing is greater than 0.8, and contract with dry rate is less than 0.6mm/M, can overcome damp suction surface halide accumulation, distortion, defective such as anti-water not, production cost is lower, can be widely used in the high residential building.
Technology contents of the present invention is: the partition plate that utilizes straw to make, be to make: straw 10--30% (percentage by weight) by following ingredients, magnesia unslacked 25--36%, bittern 30--40%, modifier 1-2.5%, glass fibre 1--2%, reinforcing agent 5--10%, its compression strength is greater than 20MPa, and coefficient of softing is greater than 0.8, and contract with dry rate is smaller or equal to 0.6mm/M.
The preparation method of above-mentioned partition plate comprises:
A, the halogen sheet is added in the entry, make the bittern that proportion is 1.17-1.29;
B, take by weighing the ferrous sulfate of the 2-4% of halogen sheet weight, the aluminum phosphate of 1-5%, the polymethyl methacrylate emulsion of 0.5-2% or/and oleic acid or/and emulsified wax adds in the bittern, stir:
C, press straw 10--30% (percentage by weight), magnesia unslacked 25--36%, bittern 30--40%, modifier 1-2.5%, reinforcing agent 5--10%, the ratio of glass fibre 1-2% takes by weighing straw, magnesia unslacked, reinforcing agent and the made solution of step b, pour into and stir into solvent or diluent in the mixer, it is standby to take by weighing glass fibre:
D, solvent or diluent and glass fibre even laminating are laid in the mould, moulding, sclerosis.
Particular content of the present invention is:
The partition plate that utilizes straw to make, be to make: straw 10--30% (percentage by weight) by following ingredients, magnesia unslacked 25--36%, bittern 30--40%, modifier 1--2.5%, reinforcing agent 5--10%, glass fibre 1--2%, its compression strength is greater than 20MPa, and coefficient of softing is greater than 0.8, and contract with dry rate is smaller or equal to 0.6mm/M.Wherein, magnesia unslacked contains magnesia and is not less than 80%; Bittern is that to add the proportion that water makes by the halogen sheet be the solution of 1.17-1.29, and the halogen sheet contains magnesium chloride and is not less than 45%; Modifier by (by halogen sheet weight) 2-4% ferrous sulfate, 1--5% aluminum phosphate, 0.5-2% polymethyl methacrylate emulsion or/and oleic acid or/and emulsified wax form; Reinforcing agent is grouped into by following one or more one-tenth: flyash, talcum powder, burnedc lay powder, bentonite, and preferably flyash is or/and talcum powder; Glass fibre is the glass fibre of alkali-free to middle alkali.
The preparation method of above-mentioned partition plate comprises:
A, the halogen sheet is added in the entry, make the bittern that proportion is 1.17-1.29;
B, take by weighing the ferrous sulfate of the 2-4% of halogen sheet weight, the aluminum phosphate of 1-5%, the polymethyl methacrylate emulsion of 0.5-2% or/and oleic acid or/and emulsified wax adds in the bittern, stir;
C, press straw 10--30% (percentage by weight), magnesia unslacked 25--36%, bittern 30--40%, modifier 1-2.5%, reinforcing agent 5-10%, the ratio of glass fibre 1--2% takes by weighing straw, magnesia unslacked, reinforcing agent and the made solution of step b, pour into and stir into solvent or diluent in the mixer, it is standby to take by weighing glass fibre;
D, solvent or diluent and glass fibre even laminating are laid in the mould, moulding, sclerosis.
Embodiment one:
1, gets the halogen sheet 50kg that contains magnesium chloride 45%, add 50kg water, make proportion and be 1.2 bittern;
2, get the 1.5kg ferrous sulfate, the 1kg aluminum phosphate, polymethyl methacrylate 0.5kg, oleic acid 0.5kg, emulsified wax 0.5kg stirs in the adding bittern;
3, get the magnesia unslacked 90kg that contains magnesia 80%, added the bittern 104kg of modifier in the step 2, straw 45kg, talcum powder 16kg pours in the mixer and stirs,
Make solvent or diluent;
4, get medium-alkali glass fibre 3.5kg and above-mentioned solvent or diluent even laminating is laid in the mould, moulding, maintenance 28 days promptly hardens into product.
Testing result: compression strength MPa 21.3
Coefficient of softing 0.95,
Contract with dry rate mm/M 0.6
Embodiment two:
1, gets the halogen sheet 50kg that contains magnesium chloride 46%, add 50kg water, make proportion and be 1.2 bittern;
2, get the 2.0kg ferrous sulfate, the 1.5kg aluminum phosphate, polymethyl methacrylate 0.5kg stirs in the adding bittern;
3, get the magnesia unslacked 95kg that contains magnesia 85%, added the bittern 104kg of modifier in the step 2, straw 32kg, bentonite and flyash 30kg pour in the mixer and stir, and make solvent or diluent;
4, alkali-free glass fibre 3.0kg and above-mentioned solvent or diluent even laminating are laid in the mould, moulding, maintenance 28 days promptly hardens into product.
Testing result: compression strength MPa 20.5
Coefficient of softing 0.87
Contract with dry rate mm/M 0.6
Embodiment three:
1, gets the halogen sheet 50kg that contains magnesium chloride 45%, add 50kg water, make proportion and be 1.2 bittern;
2, get the 1.5kg ferrous sulfate, the 1kg aluminum phosphate, silester 1kg stirs in the adding bittern;
3, get the magnesia unslacked 90kg that contains magnesia 80%, added the bittern 103.5kg of modifier in the step 2, straw 35kg, talcum powder 32kg pours in the mixer and stirs, and makes solvent or diluent;
4, low alkali glass fiber 3.0kg and above-mentioned solvent or diluent even laminating are laid in the mould, moulding, maintenance 28 days promptly hardens into product.
Testing result: compression strength MPa 20.3
Coefficient of softing 0.86
Contract with dry rate mm/M 0.6
Embodiment four:
1, gets the halogen sheet 50kg that contains magnesium chloride 45%, add 50kg water, make proportion and be 1.2 bittern;
2, get the 1.5kg ferrous sulfate, the 1kg aluminum phosphate, emulsified wax 1kg stirs in the adding bittern;
3, get the magnesia unslacked 90kg that contains magnesia 82%, added the bittern 103.5kg of modifier in the step 2, straw 35kg, burnedc lay powder 30kg pours in the mixer and stirs, and makes solvent or diluent;
4, low alkali glass fiber 3.0kg and above-mentioned solvent or diluent even laminating are laid in the mould, moulding, maintenance 28 days promptly hardens into product.
Testing result: compression strength MPa 21.3
Coefficient of softing 0.95
Contract with dry rate mm/M 0.6
Claims (11)
1, a kind of partition plate that utilizes straw to make is characterized in that it is to be made by following ingredients: straw 10--30% (percentage by weight), magnesia unslacked 25--36%, bittern 30--40%, modifier 1-2.5%, glass fibre 1--2%, reinforcing agent 5--10%.
2, a kind of partition plate that utilizes straw to make according to claim 1, it is characterized in that: its compression strength is greater than 20MPa, and coefficient of softing is greater than 0.8, and contract with dry rate is less than or equal to 0.6mm/M.
3, a kind of partition plate that utilizes straw to make according to claim 1, it is characterized in that: magnesia unslacked contains magnesia and is not less than 80%.
4, a kind of partition plate that utilizes straw to make according to claim 1 is characterized in that: bittern is that to add the proportion that water makes by the halogen sheet be the solution of 1.17-1.29.
5, a kind of partition plate that utilizes straw to make according to claim 4, it is characterized in that: content of magnesium chloride is not less than 45% in the halogen sheet.
6, a kind of partition plate that utilizes straw to make according to claim 1, it is characterized in that: modifier is that following ingredients is formulated: the mixture 0.5--2% of one or more materials in (pressing halogen sheet weight) ferrous sulfate 2--4%, aluminum phosphate 1--5%, polymethyl methacrylate emulsion, oleic acid, the emulsified wax.
7, a kind of partition plate that utilizes straw to make according to claim 6, it is characterized in that: oleic acid is silester preferably.
8, a kind of partition plate that utilizes straw to make according to claim 1 is characterized in that: glass fibre is the glass fibre of alkali-free to middle alkali.
9, a kind of partition plate that utilizes straw to make according to claim 1, it is characterized in that: reinforcing agent is formulated by following one or more components: flyash, talcum powder, burnedc lay powder, bentonite.
10, a kind of partition plate that utilizes straw to make according to claim 9 is characterized in that: preferred reinforcing agent is that flyash is or/and talcum powder
11, the described a kind of preparation method who utilizes the partition plate that straw makes of claim 1, its step comprises:
A, the halogen sheet is added in the entry, make the bittern that proportion is 1.17-1.29;
B, take by weighing the ferrous sulfate of the 2-4% of halogen sheet weight, the aluminum phosphate of 1-5%, 0.5-2%
Polymethyl methacrylate emulsion, oleic acid, emulsified wax in one or more things
The mixture of matter adds in the bittern, stirs;
C, press straw 10-30% (percentage by weight), magnesia unslacked 25--36%, bittern 30--40%,
Modifier 1-2.5%, glass fibre 1--2%, the ratio of reinforcing agent 5--10% claims
Get straw, magnesia unslacked, reinforcing agent and step b made add modifier
Bittern is poured into and is stirred into solvent or diluent in the mixer, and it is standby to take by weighing glass fibre;
D, solvent or diluent and glass fibre even laminating are laid in the mould, moulding, sclerosis.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 01108764 CN1116153C (en) | 2001-08-21 | 2001-08-21 | Partition panel made of straw and its preparation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 01108764 CN1116153C (en) | 2001-08-21 | 2001-08-21 | Partition panel made of straw and its preparation method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1341507A true CN1341507A (en) | 2002-03-27 |
CN1116153C CN1116153C (en) | 2003-07-30 |
Family
ID=4657556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 01108764 Expired - Fee Related CN1116153C (en) | 2001-08-21 | 2001-08-21 | Partition panel made of straw and its preparation method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1116153C (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1312075C (en) * | 2005-05-23 | 2007-04-25 | 程再乐 | Environmental protection composite board |
CN1322207C (en) * | 2004-05-25 | 2007-06-20 | 成都冠星科技有限公司 | Fireproof, moistureproof and anticorrosive board for steel structure building and manufacturing method thereof |
CN1323218C (en) * | 2005-01-11 | 2007-06-27 | 任文平 | Fiber composite partition wall board |
CN1324087C (en) * | 2004-04-13 | 2007-07-04 | 闫玉亭 | Nano lightweight composite wall plates made from stalk |
CN103121820A (en) * | 2011-11-18 | 2013-05-29 | 大连得达科技发展有限公司 | Technique for processing improved environmental-friendly composite board |
CN104402389A (en) * | 2014-10-22 | 2015-03-11 | 平昌沃德科技发展有限公司 | Building partition wall use light bar and preparation method thereof |
CN105541278A (en) * | 2015-12-29 | 2016-05-04 | 东莞市青麦田数码科技有限公司 | Nutshell light-weight wallboard and preparation method thereof |
CN106182326A (en) * | 2016-08-23 | 2016-12-07 | 辽宁蓝亿实业有限公司 | A kind of light burnt powder makees the environment-friendly type medium-density plate of inserts |
CN106478050A (en) * | 2016-10-19 | 2017-03-08 | 上海鼎中新材料有限公司 | The low-density of aggregate containing plant haulm plug-in strengthening lightweight moulded stone material and preparation method |
CN109503095A (en) * | 2018-12-14 | 2019-03-22 | 李明清 | A kind of straw partition plate |
CN112446308A (en) * | 2020-11-16 | 2021-03-05 | 北京科技大学 | Semantic enhancement-based pedestrian detection method based on multi-scale feature pyramid fusion |
-
2001
- 2001-08-21 CN CN 01108764 patent/CN1116153C/en not_active Expired - Fee Related
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1324087C (en) * | 2004-04-13 | 2007-07-04 | 闫玉亭 | Nano lightweight composite wall plates made from stalk |
CN1322207C (en) * | 2004-05-25 | 2007-06-20 | 成都冠星科技有限公司 | Fireproof, moistureproof and anticorrosive board for steel structure building and manufacturing method thereof |
CN1323218C (en) * | 2005-01-11 | 2007-06-27 | 任文平 | Fiber composite partition wall board |
CN1312075C (en) * | 2005-05-23 | 2007-04-25 | 程再乐 | Environmental protection composite board |
CN103121820A (en) * | 2011-11-18 | 2013-05-29 | 大连得达科技发展有限公司 | Technique for processing improved environmental-friendly composite board |
CN104402389A (en) * | 2014-10-22 | 2015-03-11 | 平昌沃德科技发展有限公司 | Building partition wall use light bar and preparation method thereof |
CN105541278A (en) * | 2015-12-29 | 2016-05-04 | 东莞市青麦田数码科技有限公司 | Nutshell light-weight wallboard and preparation method thereof |
CN106182326A (en) * | 2016-08-23 | 2016-12-07 | 辽宁蓝亿实业有限公司 | A kind of light burnt powder makees the environment-friendly type medium-density plate of inserts |
CN106478050A (en) * | 2016-10-19 | 2017-03-08 | 上海鼎中新材料有限公司 | The low-density of aggregate containing plant haulm plug-in strengthening lightweight moulded stone material and preparation method |
CN109503095A (en) * | 2018-12-14 | 2019-03-22 | 李明清 | A kind of straw partition plate |
CN112446308A (en) * | 2020-11-16 | 2021-03-05 | 北京科技大学 | Semantic enhancement-based pedestrian detection method based on multi-scale feature pyramid fusion |
Also Published As
Publication number | Publication date |
---|---|
CN1116153C (en) | 2003-07-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1022403C (en) | Lightweight insulating boards and process for manufacturing same | |
DE60034674T2 (en) | POLYMER CEMENT COMPOSITES AND METHOD OF MANUFACTURING THE SAME | |
Majumdar et al. | Glass fibre reinforced cement | |
CN1116153C (en) | Partition panel made of straw and its preparation method | |
US20030136305A1 (en) | Composition of materials for production of acid resistant cement and concrete and methods thereof | |
AU2002212131B2 (en) | Method for producing concrete or mortar using a vegetal aggregate | |
CN1361843A (en) | Composition for the fabrication of silicate plates | |
US4454285A (en) | Method for preparing glass-fiber reinforced cement composites | |
CN1396137A (en) | Hollow partition slab made of broken straw and cement and its preparing process | |
CN101062852A (en) | Highly-effective anti-cracking impervious agent and production method thereof | |
AU2128801A (en) | Fire resistant compositions | |
US3634567A (en) | Method of steam curing hydraulic setting calcareous cement and silica containing compositions | |
US20050269730A1 (en) | Method for manufacturing a wood cement board | |
CN1792987A (en) | Silicon magnesium fibre energy saving high strengthening composite building board of decoration and preparation process thereof | |
JP3136232B2 (en) | Wood cement board | |
CN1052348A (en) | High strength cement mortar and antistatic moveable floor | |
EP0067183A1 (en) | Cementitious article | |
CN1207374A (en) | Light concrete formulation using waste foam plastics as coarse aggregate and its preparing method | |
JPH06271344A (en) | Composite material | |
CN1539893A (en) | Environment protective, heatinsulated, anticarack putty composed from two constituents | |
SU1742258A1 (en) | Raw materials mixture for arbolite production | |
CN1125283A (en) | Light porous partition board and its production process | |
JPH0569787B2 (en) | ||
KR100232837B1 (en) | Paper sludge composition | |
AU724116B2 (en) | Cementitious gypsum-containing compositions and materials made therefrom |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |