CN108821696A - A kind of light aggregate concrete - Google Patents
A kind of light aggregate concrete Download PDFInfo
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- CN108821696A CN108821696A CN201810874890.7A CN201810874890A CN108821696A CN 108821696 A CN108821696 A CN 108821696A CN 201810874890 A CN201810874890 A CN 201810874890A CN 108821696 A CN108821696 A CN 108821696A
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- China
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- parts
- haydite
- light aggregate
- aggregate concrete
- concrete
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
Abstract
This application involves building material technical field more particularly to a kind of light aggregate concretes.In pumping procedure, since plugging is caused in the front that the pressure of pump line makes most of haydite rush at pump line；It usually needs to want mobile pump vehicle and suspend pumping in pumping procedure, it is lighter than water due to haydite at this time and float, so that haydite separates with cement mortar and is easy plugging.The application provides a kind of light aggregate concrete, including：200~300 parts of cement, 210~290 parts of water, 100~200 parts of special fine sand, 150~270 parts of sand, 200~600 parts of silicon manganese slag, 100~180 parts of haydite, 20~150 parts of flyash, 0.1~0.8 part of cellulose, 3~15 parts of polycarboxylic acids.To avoid haydite from separating with cement mortar, the special fine sand of addition increases the cohesiveness of haydite and cement mortar, increases concrete workability, meanwhile, the addition of cellulose effectively reduces haydite in concrete and floats.
Description
Technical field
This application involves building material technical field more particularly to a kind of light aggregate concretes.
Background technique
Light-weight aggregate is also referred to as lightweight aggregate, refers generally to loose volume weight less than 1000kg/m3Porous aggregate.It is mainly to prepare
Light aggregate concrete, thermal insulation mortar and refractory concrete etc. also act as the loose filler material of heat preservation.Light-weight aggregate presses its formation condition
It is divided into natural light-weight aggregate and artificial lightweight aggregate；It is divided into inorganic light-weight aggregate and organic light-weight aggregate (such as polystyrene by its material properties
Swollen pearl, carbon pearl etc.).Light aggregate concrete is a kind of good materials for wall of thermal insulation property, and thermal conductivity is 0.233~0.523
Watt/(rice * is opened), only the 12~33% of normal concrete.Light aggregate concrete is also known as lightweight concrete (LightWeight
Concrete, hereinafter referred to as LC) refer to be formulated using light coarse aggregate (haydite), normal sands, cement and water it is dry apparent close
Degree is not more than 1500kg/m3, strength grade is the structure lightweight concrete of LC5.0 or more.
With the raising of technical level, in order to solve the big disadvantage of normal concrete quality, in order to mitigate dead load,
By design checking in many engineerings, complete to construct using lightweight concrete.On the one hand to meet intensity requirement, and another party
Surface density design code must not exceed 1500Kg/m3.Lightweight concrete is that a kind of specific strength is high, and thermal insulation fire-resistant, anti-seismic performance is good,
The new concretes such as no alkali-aggregate reaction.
Existing light aggregate concrete density rating is 1300~1500Kg/m3, lightweight of the strength grade in LC5.0 or more
Haydite concrete.In pumping procedure, cause to block up since the pressure of pump line makes most of haydite rush at the front of pump line
Pipe；It separately usually needs to want mobile pump vehicle and suspend pumping in pumping procedure, it is lighter than water due to haydite at this time and float, so that pottery
Grain separates with cement mortar and is easy plugging.
Summary of the invention
The application is that solve above-mentioned existing light aggregate concrete density rating be 1300~1500Kg/m3, strength grade
In the light ceramsite concrete of LC15 or more.In pumping procedure, since the pressure of pump line makes most of haydite rush at pump
Cause plugging in the front of pipe；It separately usually needs to want mobile pump vehicle and suspend pumping in pumping procedure, at this moment due to haydite ratio
Water gently floats, so that haydite separates the problem of being easy into plugging with cement mortar.
For this purpose, the embodiment of the invention provides following technical solutions：A kind of light aggregate concrete, the light aggregate concrete
It is composed of the following raw materials in parts by weight：
200~300 parts of cement, 210~290 parts of water, 100~200 parts of special fine sand, 150~270 parts of sand, silicon manganese slag 200~
600 parts, 100~180 parts of haydite, 20~150 parts of flyash, 0.1~0.8 part of cellulose, 3~15 parts of polycarboxylic acids.
Optionally, the light aggregate concrete is composed of the following raw materials in parts by weight：
230~280 parts of cement, 228~265 parts of water, 130~180 parts of special fine sand, 180~230 parts of sand, silicon manganese slag 300~
500 parts, 130~170 parts of haydite, 50~120 parts of flyash, 0.15~0.6 part of cellulose, 5~12 parts of polycarboxylic acids.
Optionally, the light aggregate concrete is composed of the following raw materials in parts by weight：
260 parts of cement, 232 parts of water, 160 parts of special fine sand, 200 parts of sand, 400 parts of silicon manganese slag, 150 parts of haydite, flyash 80
Part, 0.3 part of cellulose, 8.5 parts of polycarboxylic acids.
Optionally, the light aggregate concrete further includes pumping admixture.
Optionally, the cellulose is hydroxypropyl methyl cellulose.
The technical solution that the embodiment of the present invention provides can include the following benefits：The application by choose cement,
Water, special fine sand, sand, silicon manganese slag, haydite, flyash, cellulose and polycarboxylic acids, since the density of haydite is smaller, to avoid making pottery
Grain is separated with cement mortar, and the cohesiveness that special fine sand increases haydite and cement mortar is added, increases concrete workability, together
When, the addition of cellulose effectively reduces haydite in concrete and floats.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Specific embodiment
Example embodiments are described in detail here.Embodiment described in following exemplary embodiment
Do not represent all embodiments consistented with the present invention.On the contrary, they be only with as being described in detail in the appended claims
The consistent method of some aspects of the invention example.
Silicon manganese slag makes full use of source, solves generated waste residue when manganese alloy smelting, has prevented waste residue and has huddled disorderly to fall
Phenomenon reduces to appropriation of land and environmental pollution.Realize solid waste recycling.
Special fine sand, since light aggregate concrete is light, workability is poor, and haydite easily floats, and desert spy fine sand is added, takes on the spot
Material, it is low in cost, it not only ensure that concrete quality, but also increase light aggregate concrete workability and cohesiveness, applied conducive to pumping
Work.
Cement：Cement preferentially selects portland cement or ordinary portland cement, when this mix-design is practical to select match
Horse Cement Co., Ltd PO42.5 class g cement.
Sand：Fineness modulus M>Sand in 2.3 dry tack free, clay content are not more than 2%, clod content≤1%.
Hydroxypropyl methyl cellulose (INN title：Hypromellose), simplification also makees hydroxypropyl methylcellulose
(HPMC is made in hydroxypropyl methylcellulose, abbreviation), is one belonged in nonionic cellulose compound ether
Kind.It is a kind of semi-synthetic, sluggish, viscoelasticity polymer, is often used as lubrication section in ophthalmology, and or oral
Auxiliary material or excipients are served as in drug, are common in various different types of commodity.As food additives, hydroxypropyl methylcellulose can
Take on following role：The substitute of emulsifier, thickener, suspending agent and animal gelatin.Hydroxypropyl methyl cellulose be white or
Off-white powder.The dispersing agent being mainly used in Production of PVC, furthermore in other petrochemical industries, coating, building materials, paint removal
Make thickener, stabilizer, emulsifier, film forming agent etc. in the productions such as agent, papermaking, cosmetics.
From the definition of LC it will be seen that it as normal concrete in addition to involving thick, fine aggregate, cement and water
In addition, except that also relate to apparent density threshold limit value and the smallest strength grade limit value.Configure haydite concrete
Strength grade mainly have seven grades of LC2.5, LC5.0, LC7.5, LC1O, LC15, LC20, LC25, configure haydite coagulation institute
With cement P.O42.5 horse racing.
Workability refers to that fresh cement concrete is easy to each process constructing operation (stirring, transport, casting, tamping etc.) and energy
It obtains uniform quality, form closely knit performance, meaning includes mobility, cohesiveness and water-retaining property.The also referred to as work of concrete
Property.
Embodiment one
The application provides a kind of light aggregate concrete, and the light aggregate concrete is composed of the following raw materials in parts by weight：
200 parts of cement, 210 parts of water, 100 parts of special fine sand, 150 parts of sand, 200 parts of silicon manganese slag, 100 parts of haydite, flyash 20
Part, 0.1 part of cellulose, 3 parts of polycarboxylic acids.
Optionally, the light aggregate concrete further includes pumping admixture.
Optionally, the cellulose is hydroxypropyl methyl cellulose.
Cement, water, special fine sand, sand, silicon manganese slag, haydite, flyash and polycarboxylic acids is taken to be put into mixing agitator in proportion,
And be stirred with the revolving speed of 350rpm, the time controls at 50 minutes or so；
It takes cellulose to be added in the above-mentioned mixture being stirred in proportion, and stirring 10 is continued with the revolving speed of 350rpm
Minute is to get finished product.
Embodiment two
The application provides a kind of light aggregate concrete, and the light aggregate concrete is composed of the following raw materials in parts by weight：
230 parts of cement, 228 parts of water, 130 parts of special fine sand, 180 parts of sand, 300 parts of silicon manganese slag, 130 parts of haydite, flyash 50
Part, 0.15 part of cellulose, 5 parts of polycarboxylic acids.
Optionally, the light aggregate concrete further includes pumping admixture.
Optionally, the cellulose is hydroxypropyl methyl cellulose.
Cement, water, special fine sand, sand, silicon manganese slag, haydite, flyash and polycarboxylic acids is taken to be put into mixing agitator in proportion,
And be stirred with the revolving speed of 350rpm, the time controls at 50 minutes or so；
It takes cellulose to be added in the above-mentioned mixture being stirred in proportion, and stirring 10 is continued with the revolving speed of 350rpm
Minute is to get finished product.
Embodiment three
The application provides a kind of light aggregate concrete, and the light aggregate concrete is composed of the following raw materials in parts by weight：
260 parts of cement, 232 parts of water, 160 parts of special fine sand, 200 parts of sand, 400 parts of silicon manganese slag, 150 parts of haydite, flyash 80
Part, 0.3 part of cellulose, 8.5 parts of polycarboxylic acids.
Optionally, the light aggregate concrete further includes pumping admixture.
Optionally, the cellulose is hydroxypropyl methyl cellulose.
Cement, water, special fine sand, sand, silicon manganese slag, haydite, flyash and polycarboxylic acids is taken to be put into mixing agitator in proportion,
And be stirred with the revolving speed of 350rpm, the time controls at 50 minutes or so；
It takes cellulose to be added in the above-mentioned mixture being stirred in proportion, and stirring 10 is continued with the revolving speed of 350rpm
Minute is to get finished product.
Example IV
The application provides a kind of light aggregate concrete, and the light aggregate concrete is composed of the following raw materials in parts by weight：
280 parts of cement, 265 parts of water, 180 parts of special fine sand, 230 parts of sand, 500 parts of silicon manganese slag, 170 parts of haydite, flyash 120
Part, 0.6 part of cellulose, 12 parts of polycarboxylic acids.
Optionally, the light aggregate concrete further includes pumping admixture.
Optionally, the cellulose is hydroxypropyl methyl cellulose.
Cement, water, special fine sand, sand, silicon manganese slag, haydite, flyash and polycarboxylic acids is taken to be put into mixing agitator in proportion,
And be stirred with the revolving speed of 350rpm, the time controls at 50 minutes or so；
It takes cellulose to be added in the above-mentioned mixture being stirred in proportion, and stirring 10 is continued with the revolving speed of 350rpm
Minute is to get finished product.
Embodiment five
The application provides a kind of light aggregate concrete, and the light aggregate concrete is composed of the following raw materials in parts by weight：
300 parts of cement, 290 parts of water, 200 parts of special fine sand, 270 parts of sand, 600 parts of silicon manganese slag, 180 parts of haydite, flyash 150
Part, 0.8 part of cellulose, 15 parts of polycarboxylic acids.
Optionally, the light aggregate concrete further includes pumping admixture.
Optionally, the cellulose is hydroxypropyl methyl cellulose.
Cement, water, special fine sand, sand, silicon manganese slag, haydite, flyash and polycarboxylic acids is taken to be put into mixing agitator in proportion,
And be stirred with the revolving speed of 350rpm, the time controls at 50 minutes or so；
It takes cellulose to be added in the above-mentioned mixture being stirred in proportion, and stirring 10 is continued with the revolving speed of 350rpm
Minute is to get finished product.
Wherein, the ratio of each raw material is optimum proportioning in embodiment three.
Fine aggregate uses industrial residue -- silicon manganese slag and desert spy's fine sand, and coarse aggregate is made using lytag, polycarboxylic acids
For high efficiency water reducing agent hydroxypropyl methyl cellulose.
The technical solution that the embodiment of the present invention provides can include the following benefits：The application by choose cement,
Water, special fine sand, sand, silicon manganese slag, haydite, flyash, cellulose and polycarboxylic acids, since the density of haydite is smaller, to avoid making pottery
Grain is separated with cement mortar, and the cohesiveness that special fine sand increases haydite and cement mortar is added, increases concrete workability, together
When, the addition of cellulose effectively reduces haydite in concrete and floats.Pumping admixture is mixed to reduce concrete water amount, improves coagulation
The workability of soil.
The above is only the specific embodiment of the embodiment of the present invention, is made skilled artisans appreciate that or realizing
The present invention.Various modifications to these embodiments will be apparent to one skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, originally
Invention is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein
Consistent widest scope.
It should be understood that the application is not limited to the content being described above, and its model can not departed from
It encloses and carry out various modifications and change.Scope of the present application is only limited by the accompanying claims.
Claims (5)
1. a kind of light aggregate concrete, which is characterized in that the light aggregate concrete is composed of the following raw materials in parts by weight：
200~300 parts of cement, 210~290 parts of water, 100~200 parts of special fine sand, 150~270 parts of sand, silicon manganese slag 200~600
Part, 100~180 parts of haydite, 20~150 parts of flyash, 0.1~0.8 part of cellulose, 3~15 parts of polycarboxylic acids.
2. light aggregate concrete according to claim 1, which is characterized in that the light aggregate concrete is by following parts by weight
Raw material composition：
230~280 parts of cement, 228~265 parts of water, 130~180 parts of special fine sand, 180~230 parts of sand, silicon manganese slag 300~500
Part, 130~170 parts of haydite, 50~120 parts of flyash, 0.15~0.6 part of cellulose, 5~12 parts of polycarboxylic acids.
3. light aggregate concrete according to claim 2, which is characterized in that the light aggregate concrete is by following parts by weight
Raw material composition：
260 parts of cement, 232 parts of water, 160 parts of special fine sand is 200 parts of sand, 400 parts of silicon manganese slag, 150 parts of haydite, 80 parts of flyash, fine
0.3 part, 8.5 parts of polycarboxylic acids of dimension element.
4. light aggregate concrete described in any one of claim 1 to 3, which is characterized in that the light aggregate concrete
It further include pumping admixture.
5. light aggregate concrete according to claim 4, which is characterized in that the cellulose is hydroxypropyl methyl fiber
Element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810874890.7A CN108821696A (en) | 2018-08-01 | 2018-08-01 | A kind of light aggregate concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810874890.7A CN108821696A (en) | 2018-08-01 | 2018-08-01 | A kind of light aggregate concrete |
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| Publication Number | Publication Date |
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| CN108821696A true CN108821696A (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810874890.7A Pending CN108821696A (en) | 2018-08-01 | 2018-08-01 | A kind of light aggregate concrete |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970414A (en) * | 2019-04-11 | 2019-07-05 | 宁夏亿丰砼业有限公司 | A kind of lightweight aggregate concrete and construction method |
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|---|---|---|---|---|
| WO2004080912A1 (en) * | 2003-03-10 | 2004-09-23 | Johnny Johansson | A method for producing structural lightweight aggregate concrete |
| CN103693916A (en) * | 2013-12-18 | 2014-04-02 | 北京东方建宇混凝土科学技术研究院有限公司 | Lightweight aggregate concrete and preparation method thereof |
| CN103755165A (en) * | 2013-12-18 | 2014-04-30 | 北京东方建宇混凝土科学技术研究院有限公司 | Modified silicon-manganese slag, concrete prepared from the same and preparation method for concrete |
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2018
- 2018-08-01 CN CN201810874890.7A patent/CN108821696A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004080912A1 (en) * | 2003-03-10 | 2004-09-23 | Johnny Johansson | A method for producing structural lightweight aggregate concrete |
| CN103693916A (en) * | 2013-12-18 | 2014-04-02 | 北京东方建宇混凝土科学技术研究院有限公司 | Lightweight aggregate concrete and preparation method thereof |
| CN103755165A (en) * | 2013-12-18 | 2014-04-30 | 北京东方建宇混凝土科学技术研究院有限公司 | Modified silicon-manganese slag, concrete prepared from the same and preparation method for concrete |
Non-Patent Citations (3)
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| 夏寿荣编著: "《最新混凝土外加剂生产配方精选400例》", 31 January 2014, 中国建材工业出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970414A (en) * | 2019-04-11 | 2019-07-05 | 宁夏亿丰砼业有限公司 | A kind of lightweight aggregate concrete and construction method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181116 |
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