CN103803878A - Low-cost concrete and preparation process thereof - Google Patents
Low-cost concrete and preparation process thereof Download PDFInfo
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- CN103803878A CN103803878A CN201310734266.4A CN201310734266A CN103803878A CN 103803878 A CN103803878 A CN 103803878A CN 201310734266 A CN201310734266 A CN 201310734266A CN 103803878 A CN103803878 A CN 103803878A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses low-cost concrete consisting of the following components in percentage by weight: 300-360 parts of fly ash, 125-160 parts of cement, 30-50 parts of coal gangue, 45-60 parts of mineral powder, 50-80 parts of pebble, 100-150 parts of fine sand, 25-45 parts of silicon powder, 5-8 parts of plasticizer, 7.5-10.5 parts of water reducing agent and water for the balance, wherein water-binder ratio is kept at 0.25-0.45. The low-cost concrete disclosed by the invention, through the ways, is simple to prepare, high in product percent of pass, relatively low in energy, energy-saving and good in water absorption capability; the low-cost concrete has a certain effect of removing foreign smell, and has certain functions of proofing mould and insects.
Description
Technical field
The present invention relates to concrete field, particularly relate to a kind of low-cost concrete and manufacture craft thereof.
Background technology
Coal is widely used as industrial fuel, bring unprecedented huge production power to society, promote advancing of industry, coal burning heat is high, be widely used in the industry such as iron and steel, chemical industry, mining, metallurgy, but, after coal burning, also can produce a large amount of flyash, the main solid waste that flyash Ye Shi coal-burning power plant discharges, it is reported, the air ambient that pellet causes at present pollutes and has become the principal element that affects urban air-quality, and the airborne dust that flyash forms is exactly wherein very important " contributor ".And flyash is piled up land occupation for a long time, have a strong impact on periphery villager's production and life, a large amount of flyash has brought larger hidden danger to environment, therefore, how flyash being applied to building materials industry is to benefit the nation and the people, and puts technical problem urgently to be resolved hurrily in Economic development.
Summary of the invention
The technical problem that the present invention mainly solves is to provide that a kind of cost is lower, water absorbing properties good, has low-cost concrete and the manufacture craft thereof of certain removal odor function.
For solving the problems of the technologies described above, the invention provides a kind of low-cost concrete, comprise the component of following weight proportioning: flyash 300-360 part, cement 125-160 part, coal gangue 30-50 part, breeze 45-60 part, stone 50-80 part, fine sand 100-150 part, silica flour 25-45 part, softening agent 5-8 part, water reducer 7.5-10.5 part, all the other are water, and water-cement ratio remains on 0.25-0.45, described flyash diameter is less than or equal to 8 microns, described coal gangue diameter is less than or equal to 15 microns, and in described coal gangue, do not contain stone, described stone diameter is less than or equal to 10 microns, described fine sand diameter is less than or equal to 10 microns, described water reducer is methylene radical dimethyl sodium dinaphthalenesulfonate polymkeric substance.
In a preferred embodiment of the present invention, described low-cost concrete also comprises the pore forming material of 4-6 part, and described pore forming material is the mixture of benzene sulfonamide acid esters and alkyl ether sulphate.
In a preferred embodiment of the present invention, described low-cost concrete comprises the component of following weight proportioning: 360 parts, flyash, cement 130-150 part, coal gangue 30-50 part, breeze 50-60 part, stone 50-65 part, fine sand 100-120 part, silica flour 30-40 part, softening agent 5-8 part, water reducer 7.5-10.5 part, all the other are water, and water-cement ratio remains on 0.35-0.4.
In a preferred embodiment of the present invention, described low-cost concrete comprises the component of following weight proportioning: 350 parts, flyash, 135 parts of cement, 40 parts of coal gangues, 55 parts of breezes, 60 parts, stone, 100 parts of fine sands, 40 parts of silica flours, 6 parts, softening agent, 8 parts of water reducers, 5 parts of pore forming materials, all the other are water, and water-cement ratio remains on 0.38-0.4.
A manufacture craft for low-cost concrete, described low-cost concrete is the arbitrary described low-cost concrete of claim 1-4, its manufacture craft comprises the following steps:
(1) said components is screened, takes said components after screening for subsequent use,
(2) flyash, cement, coal gangue, breeze, stone, fine sand, silica flour are mixed to obtain mixed powder for subsequent use,
(3) be two parts by moisture, first part of water yield that is 80%, second part of water yield that is 20%,
(4) in first part of water, add softening agent fully to stir, after stirring, by the abundant mix and blend of mixed powder in the aqueous solution and step (2), leave standstill 20-40 minute,
(5) in second part of water, add water reducer fully to stir, and the aqueous solution stirring is poured in the mixture in step (4) and again carried out mix and blend, complete concrete making.
The invention has the beneficial effects as follows: effect that low-cost concrete cost of the present invention is lower, save energy, water absorbing properties are good, have certain removal peculiar smell, there is certain mildew-resistant, insect protected function, the manufacture craft of low-cost concrete of the present invention is simple to operate, operating process is easy to control, and conforming product rate is high.
Embodiment
To the technical scheme in the embodiment of the present invention be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
A kind of low-cost concrete, comprise the component of following weight proportioning: 305 parts, flyash, 125 parts of cement, 32 parts of coal gangues, 45 parts of breezes, 50 parts, stone, 101 parts of fine sands, 25 parts of silica flours, 5.5 parts, softening agent, 7.5 parts of water reducers, all the other are water, and water-cement ratio remains on 0.3, carry out screening and filtering by sieve, make described flyash diameter be less than or equal to 8 microns, described coal gangue diameter is less than or equal to 15 microns, and in described coal gangue, do not contain stone, described stone diameter is less than or equal to 10 microns, described fine sand diameter is less than or equal to 10 microns, described water reducer is methylene radical dimethyl sodium dinaphthalenesulfonate polymkeric substance.
Its manufacture craft comprises the following steps:
(1) said components is screened, takes said components after screening for subsequent use,
(2) flyash, cement, coal gangue, breeze, stone, fine sand, silica flour are mixed to obtain mixed powder for subsequent use,
(3) be two parts by moisture, first part of water yield that is 80%, second part of water yield that is 20%,
(4) in first part of water, add softening agent fully to stir, after stirring, by the abundant mix and blend of mixed powder in the aqueous solution and step (2), leave standstill 20-40 minute,
(5) in second part of water, add water reducer fully to stir, and the aqueous solution stirring is poured in the mixture in step (4) and again carried out mix and blend, complete concrete making.If lay ground as being used for, wall, can use the above-mentioned concrete of hygrometric state to lay, treat its natural coagulation, i.e. front 3-5 days after laying, every 5-8 hour waters once, water the 30-50% that the water yield is weight concrete, after laying 6 days, stop watering, if be used for making floor, brick and tile, can use the concrete of above-mentioned hygrometric state in model, to prepare preform, after 10-15 minute, after it tentatively solidifies, place it in controlled wet environment and harden, described controlled wet environment humidity remains on 50-60%, and be covered with wet careless felt thereon, avoid sunlight direct projection, air-set 2-3 days, can obtain required finished product.
The ground water absorbing rate that uses this concrete to lay is higher, water-intake rate reaches 6.5%, and there is the effect of removing peculiar smell, be highly suitable for culture zone, can keep the dry of ground, can remove again certain peculiar smell, at ambient temperature, under the condition that is 30-45% in humidity, within 5.5 hours, can remove 80% peculiar smell, and increase ambient moisture, in the time that humidity reaches 60-65%, can be got rid of 80% peculiar smell for 3.5 hours, guaranteed the second stage employ of flyash, save resource, can reach again user demand, reduced use cost.
Embodiment 2
A kind of low-cost concrete, comprise the component of following weight proportioning: 360 parts, flyash, 150 parts of cement, 45 parts of coal gangues, 55 parts of breezes, 60 parts, stone, 125 parts of fine sands, 30 parts of silica flours, 7.5 parts, softening agent, 10.5 parts of water reducers, all the other are water, and water-cement ratio remains on 0.4, the same sieve screening and filtering said components of passing through, make described flyash diameter be less than or equal to 8 microns, described coal gangue diameter is less than or equal to 15 microns, and in described coal gangue, do not contain stone, described stone diameter is less than or equal to 10 microns, described fine sand diameter is less than or equal to 10 microns, described water reducer is methylene radical dimethyl sodium dinaphthalenesulfonate polymkeric substance.
Its manufacture craft comprises the following steps:
(1) said components is screened, takes said components after screening for subsequent use,
(2) flyash, cement, coal gangue, breeze, stone, fine sand, silica flour are mixed to obtain mixed powder for subsequent use,
(3) be two parts by moisture, first part of water yield that is 80%, second part of water yield that is 20%,
(4) in first part of water, add softening agent fully to stir, after stirring, by the abundant mix and blend of mixed powder in the aqueous solution and step (2), leave standstill 40 minutes,
(5) in second part of water, add water reducer fully to stir, and the aqueous solution stirring is poured in the mixture in step (4) and again carried out mix and blend, complete concrete making.
The ground water absorbing rate that uses this concrete to lay reaches 8.8%, and has the effect of removing peculiar smell, at ambient temperature, under the condition that is 30-45% in humidity, within 4-5 hour, can remove 80% peculiar smell, and increase ambient moisture, in the time that humidity reaches 60-65%, within 3-4 hour, can get rid of 75% peculiar smell, be highly suitable for culture zone, guaranteed the second stage employ of flyash, saved resource, can reach again user demand, reduce use cost.
Embodiment 3
A kind of low-cost concrete, comprise the component of following weight proportioning: 355 parts, flyash, 152 parts of cement, 50 parts of coal gangues, 48 parts of breezes, 76 parts, stone, 105 parts of fine sands, 30 parts of silica flours, 8 parts, softening agent, 7.8 parts of water reducers, described low-cost concrete also comprises the pore forming material of 4 parts, described pore forming material is the mixture of benzene sulfonamide acid esters and alkyl ether sulphate, all the other are water, and water-cement ratio remains on 0.32, described flyash diameter is less than or equal to 8 microns, described coal gangue diameter is less than or equal to 15 microns, and in described coal gangue, do not contain stone, described stone diameter is less than or equal to 10 microns, described fine sand diameter is less than or equal to 10 microns, described water reducer is methylene radical dimethyl sodium dinaphthalenesulfonate polymkeric substance.
Its manufacture craft comprises the following steps:
(1) said components is screened, takes said components after screening for subsequent use,
(2) flyash, cement, coal gangue, breeze, stone, fine sand, silica flour are mixed to obtain mixed powder for subsequent use,
(3) be two parts by moisture, first part of water yield that is 80%, second part of water yield that is 20%,
(4) in first part of water, add softening agent fully to stir, after stirring, by the abundant mix and blend of mixed powder in the aqueous solution and step (2), leave standstill 20 minutes,
(5) in second part of water, add water reducer fully to stir, and the aqueous solution stirring is poured in the mixture in step (4) and again carried out mix and blend, complete concrete making.If be used for making floor, brick and tile, can use the concrete of above-mentioned hygrometric state in model, to prepare preform, after 10-15 minute, after it tentatively solidifies, place it in controlled wet environment and harden, described controlled wet environment humidity remains on 50-60%, and be covered with wet careless felt thereon, avoid sunlight direct projection, air-set 2-3 days, can obtain required finished product, this floor or brick and tile, the slump remains on 170-185mm, suitable use is bearing in the little livestock breeding industry of pressure, or for making the warehouse that stores army provisions, cost reduces 20-35% than common concrete, do not affecting completely under the condition of use, water-intake rate is high, water-intake rate can reach 9.5%, and there is mildew-resistant, insect protected function, the more important thing is, this concrete also has the effect of absorption peculiar smell.
Embodiment 4
A kind of low-cost concrete, comprise the component of following weight proportioning: 355 parts, flyash, 158 parts of cement, 45 parts of coal gangues, 57 parts of breezes, 78 parts, stone, 149 parts of fine sands, 42 parts of silica flours, 5.5 parts, softening agent, 8 parts of water reducers, described low-cost concrete also comprises the pore forming material of 6 parts, described pore forming material is the mixture of benzene sulfonamide acid esters and alkyl ether sulphate, all the other are water, and water-cement ratio remains on 0.45, described flyash diameter is less than or equal to 8 microns, described coal gangue diameter is less than or equal to 15 microns, and in described coal gangue, do not contain stone, described stone diameter is less than or equal to 10 microns, described fine sand diameter is less than or equal to 10 microns, described water reducer is methylene radical dimethyl sodium dinaphthalenesulfonate polymkeric substance.
Its manufacture craft comprises the following steps:
(1) said components is screened, takes said components after screening for subsequent use,
(2) flyash, cement, coal gangue, breeze, stone, fine sand, silica flour are mixed to obtain mixed powder for subsequent use,
(3) be two parts by moisture, first part of water yield that is 80%, second part of water yield that is 20%,
(4) in first part of water, add softening agent fully to stir, after stirring, by the abundant mix and blend of mixed powder in the aqueous solution and step (2), leave standstill 30 minutes,
(5) in second part of water, add water reducer fully to stir, and the aqueous solution stirring is poured in the mixture in step (4) and again carried out mix and blend, complete concrete making.If lay ground as being used for, wall, can use the above-mentioned concrete of hygrometric state to lay, treat its natural coagulation, i.e. first 3 days after laying, within every 5 hours, water once, watering the water yield is 35% of weight concrete, after laying 6 days, stop watering, if be used for making floor, brick and tile, can use the concrete of above-mentioned hygrometric state in model, to prepare preform, after 15 minutes, after it tentatively solidifies, place it in controlled wet environment and harden, described controlled wet environment humidity remains on 55%, and be covered with wet careless felt thereon, avoid sunlight direct projection, air-set 2-3 days, can obtain required finished product.This concrete finished product, suitable use is at the ground or the body of wall that bear in the little livestock breeding industry of pressure, or for making the warehouse that stores army provisions, cost reduces 20% than common concrete, do not affecting completely under the condition of use, water-intake rate is high, water-intake rate can reach 6%, and has mildew-resistant, insect protected function, the more important thing is, this concrete also has the effect of absorption peculiar smell, at ambient temperature, even under the humidity below 25%, within 6-10 hour, also can get rid of more than 55% peculiar smell, and saved the energy, cost is lower.
Low-cost concrete of the present invention is by second stage employ flyash, save energy, reduced concrete material cost, improve again concrete water absorbing properties, and there is the performance of removing peculiar smell, be highly suitable for livestock-raising field or army provisions deposit field, the manufacture craft of low-cost concrete of the present invention is simple to operate, operating process is easy to control, and conforming product rate is high.
Be different from prior art, effect that low-cost concrete of the present invention is made is simple, conforming product rate is high, cost is lower, save energy, water absorbing properties are good, have certain removal peculiar smell, there is certain mildew-resistant, insect protected function.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a low-cost concrete, it is characterized in that, comprise the component of following weight proportioning: flyash 300-360 part, cement 125-160 part, coal gangue 30-50 part, breeze 45-60 part, stone 50-80 part, fine sand 100-150 part, silica flour 25-45 part, softening agent 5-8 part, water reducer 7.5-10.5 part, all the other are water, and water-cement ratio remains on 0.25-0.45, described flyash diameter is less than or equal to 8 microns, described coal gangue diameter is less than or equal to 15 microns, and in described coal gangue, do not contain stone, described stone diameter is less than or equal to 10 microns, described fine sand diameter is less than or equal to 10 microns, described water reducer is methylene radical dimethyl sodium dinaphthalenesulfonate polymkeric substance.
2. low-cost concrete according to claim 1, is characterized in that, described low-cost concrete also comprises the pore forming material of 4-6 part, and described pore forming material is the mixture of benzene sulfonamide acid esters and alkyl ether sulphate.
3. low-cost concrete according to claim 1, it is characterized in that, described low-cost concrete comprises the component of following weight proportioning: 360 parts, flyash, cement 130-150 part, coal gangue 30-50 part, breeze 50-60 part, stone 50-65 part, fine sand 100-120 part, silica flour 30-40 part, softening agent 5-8 part, water reducer 7.5-10.5 part, all the other are water, and water-cement ratio remains on 0.35-0.4.
4. low-cost concrete according to claim 1, it is characterized in that, described low-cost concrete comprises the component of following weight proportioning: 350 parts, flyash, 135 parts of cement, 40 parts of coal gangues, 55 parts of breezes, 60 parts, stone, 100 parts of fine sands, 40 parts of silica flours, 6 parts, softening agent, 8 parts of water reducers, 5 parts of pore forming materials, all the other are water, and water-cement ratio remains on 0.38-0.4.
5. a manufacture craft for low-cost concrete, is characterized in that, described low-cost concrete is the arbitrary described low-cost concrete of claim 1-4, and its manufacture craft comprises the following steps:
(1) said components is screened, takes said components after screening for subsequent use,
(2) flyash, cement, coal gangue, breeze, stone, fine sand, silica flour are mixed to obtain mixed powder for subsequent use,
(3) be two parts by moisture, first part of water yield that is 80%, second part of water yield that is 20%,
(4) in first part of water, add softening agent fully to stir, after stirring, by the abundant mix and blend of mixed powder in the aqueous solution and step (2), leave standstill 20-40 minute,
(5) in second part of water, add water reducer fully to stir, and the aqueous solution stirring is poured in the mixture in step (4) and again carried out mix and blend, complete concrete making.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310734266.4A CN103803878A (en) | 2013-12-27 | 2013-12-27 | Low-cost concrete and preparation process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310734266.4A CN103803878A (en) | 2013-12-27 | 2013-12-27 | Low-cost concrete and preparation process thereof |
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| CN103803878A true CN103803878A (en) | 2014-05-21 |
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| CN201310734266.4A Pending CN103803878A (en) | 2013-12-27 | 2013-12-27 | Low-cost concrete and preparation process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058652A (en) * | 2014-05-29 | 2014-09-24 | 安徽华塑股份有限公司 | High-strength concrete and preparation method thereof |
| CN106542790A (en) * | 2016-10-21 | 2017-03-29 | 中国建筑第八工程局有限公司 | gangue light aggregate concrete and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182175A (en) * | 2007-11-22 | 2008-05-21 | 重庆大学 | Coal gangue-fly ash foam concrete |
-
2013
- 2013-12-27 CN CN201310734266.4A patent/CN103803878A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182175A (en) * | 2007-11-22 | 2008-05-21 | 重庆大学 | Coal gangue-fly ash foam concrete |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058652A (en) * | 2014-05-29 | 2014-09-24 | 安徽华塑股份有限公司 | High-strength concrete and preparation method thereof |
| CN104058652B (en) * | 2014-05-29 | 2016-01-20 | 安徽华塑股份有限公司 | A kind of strong concrete and preparation method thereof |
| CN106542790A (en) * | 2016-10-21 | 2017-03-29 | 中国建筑第八工程局有限公司 | gangue light aggregate concrete and preparation method thereof |
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Application publication date: 20140521 |