CN103588431A - Formula and method for preparation of straw cement insulation brick - Google Patents
Formula and method for preparation of straw cement insulation brick Download PDFInfo
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Abstract
The invention discloses a formula and a method for preparation of a straw cement insulation brick. The formula involves dry soil, cement, straw powder, gypsum powder and water in a ratio of 40:19:7.5:7.5:26. The method includes: weighing the raw materials according to the formula that dry soil, cement, straw powder, gypsum powder and water are in a ratio of 40:19:7.5:7.5:26, putting the materials except water in a bucket and stirring them uniformly; then loading the uniformly stirred materials into a stirrer, then adding water, and carrying out stirring for 5min-8min; after fully stirring, firstly loading the dry soil and cement into a grinding tool, conducting tamping, then adding the straw powder and the gypsum powder to further perform tamping so as to make a total brick well shaped by layered adding, then conducting covering with a board, and performing extrusion forming; and carrying out mould removal for 12h, thus obtaining the well prepared straw cement insulation brick. By changing the brick production process, the formula and the method provided by the invention makes use of river silt and straw to prepare building energy-saving insulation bricks, and have the advantages of easy material taking, simple making and low cost, promote the development of green architectures, and have significant social, economic and environmental benefits.
Description
Technical field
The invention belongs to insulating brick preparing technical field, relate in particular to a kind of formula and method thereof of preparing stalk cement heat preserving brick.
Background technology
Along with the constantly bringing forth new ideas of scientific and technological level and equipment technology, perfect, various building materials are also constantly invented, and create, produce, and the production that is product with stylish technology and technique provides quality-guarantee.Take clay-ware as example, western countries completed from solid clay brick to hollow brick and the transformation of other various lightweights, Multifucntional materials for wall substantially in 20th century 50, the sixties, shape is known clearly and be take structural clay tile as main, other all kinds of novel wall materials the materials for wall structural system of depositing.Take Belgium as example, nineteen fifty the output ratio that accounts for clay brick of solid brick be 95%, hollow brick only accounts for 2%, during by 1970, the ratio of solid brick drops to 40%, and the ratio of hollow brick brings up to 48%, has substantially realized clay brick by the solid transformation to hollow brick.In EU countries, New wall brick usage quantity accounts for 90%, and solid clay brick accounts for 10%.The New wall brick of China accounts for 10%, and solid clay brick accounts for 90%.At present, EU countries is used New wall brick comprehensively, has stopped the production of solid clay brick completely, and autoclaved brick is used in a large number, accounts for the more than 40% of total consumption.
Domestic state of development
Focus development and the full coal gangue hollow brick of popularization, high blending flyash hollow brick ecological architectural material product are clearly proposed in China's materials for wall reform Tenth Five-year plan and development program in 2015.But proportion is still less than normal in total materials for wall at present, be therefore difficult to meet the current requirement to environmental resource protection.Only impel the fast development of suiting measures to local conditions of various novel wall materials, could change materials for wall unreasonable product structure, reach energy-conservation, protect farmland, utilize industrial residue, promote the object of Building technology.
Shanxi technology Academy civil engineering and construction institute opens ripple lecturer and in the progress > > in building materials application, has summarized main utilize approach and the progress of stalk at building material industry at < < agricultural wastes straw in addition, comprise stalk cement, composite gypsum material, the various modes of utilizing of the aspect such as straw-stalk wall material and Wood-plastic material, for scientific development and comprehensive utilization stalk provide valuable data.
Brick is artificial small-sized bulk for building, and minute vitrified brick (mainly referring to clay brick) and no-firing brick (Dinas brickes, flyash brick etc.), be commonly called as brick.Brick is the most traditional building material.By clay, be that main raw material progressively develops to industrial wastes such as utilizing coal gangue and flyash, the while, is developed to non-sintering by sintering to porous, hollow development by solid.
Along with expanding economy, people's standard of living also promotes gradually, and in the today of advocating energetically Sustainable development, ecotecture enjoys people's attention.Whether this is not only confined to architectural environment and is suitable for living, and more should embody the sustainability of building in the selection of material of construction.The western countries such as America and Europe are devoted to agricultural crop straw remarkable for research and the effect of material of construction very early, China is in this respect also in the starting stage, not universal, hope is along with China's economy and scientific and technological development and progress, people are for the continuous reinforcement of ecology understanding, stalk can access compatriots' abundant attention for this technology of building block, obtains application and popularization energetically, to alleviate current energy starved problem.Straw cement-earth insulating brick is as a kind of novel insulating brick; not only have and draw materials easily, make simple, easy construction, the feature such as with low cost; and some are dealt with to more difficult material effectively utilize; turn waste into wealth; meeting the requirement to environment protection, is a kind of green construction material.By changing the production technique of brick; utilize riverway sludge; straw is for building energy conservation heat insulation brick; both can solve the environmental problem that riverway sludge bulk deposition produces; saving and protection soil, can promote again production and the use of China's building material, advances the development of green building; there is significant society, economy and environmental benefit.
Brick with a long history, brick comes across the latter stage in slave society and the initial stage of feudal society.From the Architecture site of Warring states' time, found bar brick, square brick and railing brick, various in style, be mainly used in floor file and build wall.Bar brick and square brick compression molding, exterior trim decorative pattern, beast line is carved on railing brick two sides, and beast makes volt shape, bows one's head to stick up tail, and form is simple and unsophisticated, lively.Real a large amount of brick that uses starts from the Qin Dynasty.After Emperor Qin's Unified China, ,Xiu Chi road, ,Jian palace, emerging capital, build mausoleum, fired and applied a large amount of bricks.In historic Qin Dynasty capital Epang Palace, be exactly to use blue bricks floor file.On blue bricks, also have various ornamental textured patterns, to golden precious art and the historical value of still having.Technology and industrial scale, quality and the pattern variety of Qin Han brickmaking in period all take shape, and " Qin brick and Han tile " is referred in the world.
In our country, although new wall material is rapid at Chinese development, main use remain clay solid brick.Clay brick is gathered materials on the spot, and low price is durable in use, also have the advantages such as fire prevention, heat insulation, sound insulation, the moisture absorption, but clay brick also has a lot of shortcomings.(1) from great, the weight of clay brick is relatively large compared with other building wall material deadweights, makes structure need to bear larger deadweight, and construction costs increases; (2) soundproof effect is poor, and sound transmission, in clay brick, because its voidage is less, is not isolated sound, and the decibel of sound reduces seldom, and its voidage of concrete aerated blocks as more in present employing of other building materials is larger, and soundproof effect is obvious; Therefore (3) environmental disruption is large, because clay brick mainly forms by the soil sintering of excavation, to soil fail and vegetation deterioration etc., causes soil erosion, and bad border is seriously damaged, thus country just gradually suspension of engineering work use clay brick.During 12, whole nation taboo chainotte brick is built a house, and county town bans use of solid clay brick, and 183 cities such as Shanghai, Shenzhen will limit the use of clay-ware.
Compare with European countries, we are also faced with many difficult problems such as single such as product, equipment falls behind at national Novel brick development.(1) developed country's New wall brick is just extensively promoted ， EU countries as far back as many years ago, and New wall brick usage quantity accounts for 90%, and solid clay brick accounts for 10%.The New wall brick of China accounts for 10%, and solid clay brick accounts for 90%.At present, EU countries is used New wall brick comprehensively, has stopped the production of solid clay brick completely, and autoclaved brick is used in a large number, accounts for the more than 40% of total consumption.(2) wall body brick that great variety of goods, diverse in function EU countries produce is numerous in variety, and demand personalized by people, functionalization is set out, and meets the different consumer groups.(3) production unit is advanced, increasingly automated.(4) product standard variation.
In our country, the utilization ratio of Novel brick is also very low, and shortage of standard, although send out to turn, has a extensive future, and research is also fewer now.Stalk cement cob brick is exactly the optimal selection of current instead of clay brick.The advantages such as it has draws materials easily, makes simply, and constructing operation is convenient.Stalk green building material has been applied more than 20 year in European and American developed countries such as the U.S., France, Japan, existing all over the world fashionable, flourishing long time, and the national stalk having is applied to building materials and is described as the strong material of new millennium high-tech environmental protection up to 80%，Bei various countries.Along with the propelling of China's building materials Green Process, the nearly 5-6 of China, the application of stalk building materials is promoted rapidly, becomes the burning the hotest industry of building materials industrial field.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of formula and method thereof of preparing stalk cement heat preserving brick, is intended to solve the domestic problem that lacks stalk insulating brick.
The embodiment of the present invention is achieved in that a kind of formula of preparing stalk cement heat preserving brick, and this formula of preparing stalk cement heat preserving brick is, dry ground: cement: straw powder: terra alba: water=40:19:7.5:7.5:26.
Another object of the embodiment of the present invention is to provide a kind of method of preparing stalk cement heat preserving brick, and this method of preparing stalk cement heat preserving brick comprises the following steps:
Step 1, according to formula dry ground: cement: straw powder: terra alba: water=40:19:7.5:7.5:26, weighed starting material, the material outside dewatering is put into bucket and first stirs;
Step 2, then packs stirrer into stirring even material, then adds water, stirs 5 minutes～8 minutes;
Step 3, after being stirred, first packs dry ground and cement in grinding tool into, adds straw powder and terra alba to continue tamping after tamping again, and layering adds, tamping makes full brick moulding intact, then plate is above covered to extrusion molding;
Step 4, through form removal in 12 hours, the stalk cement-earth insulating brick that obtains completing.
Further, in step 1, straw powder adopts containing 40% robust fibre, 20% five-carbon sugar polymkeric substance and gives up 20% ash content and the powdered rice hulls of a small amount of crude protein, crude fat organic compound, and powdered rice hulls proportion is 0.4274g/cm
2.
Further, straw powder can also be used wheat, paddy rice, corn, potato class, oil plant, cotton, sugarcane.
Further, in step 1, the making method of dry ground is:
Make the mud that clears out when insulating brick dry ground used is channel cleanout, after mud is transported back, first on the ground air-dry, then put in baking oven and dry 6 hours, take out afterwards coolingly, then mud is put into pulverizer and pulverize.
Further, the folding strength mean value of stalk cement-earth insulating brick is 2.98MPa.
Further, the ultimate compression strength mean value of stalk cement-earth insulating brick is 8.1MPa.
A kind of formula and method thereof of preparing stalk cement heat preserving brick provided by the invention, by changing the production technique of brick, utilize riverway sludge, straw, for building energy conservation heat insulation brick, both can solve the environmental problem that riverway sludge bulk deposition produces, saving and protection soil, can promote again production and the use of China's building material, advanced the development of green building, there is significant society, economy and environmental benefit; Stalk of the present invention has draws materials easily, makes simple, easy construction, feature with low cost, to dealing with more difficult material, effectively utilizes, and turns waste into wealth, and meets the requirement to environment protection, is a kind of green construction material.In addition, stalk fibre blockwork of the present invention easy construction, completely dry operation, only needs esting and fixes with woven wire or bamboo reinforcement, and technology is simple, short construction period, reusable edible, is easy to degraded.
Accompanying drawing explanation
Fig. 1 is a kind of method flow diagram of preparing stalk cement heat preserving brick that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
The system component of preparing stalk cement heat preserving brick and the ratio of the embodiment of the present invention be, dry ground: cement: straw powder: terra alba: water=40:19:7.5:7.5:26;
As shown in Figure 1, the method for preparing stalk cement heat preserving brick of the embodiment of the present invention comprises the following steps:
S101: according to formula dry ground: cement: straw powder: terra alba: water=40:19:7.5:7.5:26, weighed starting material, the material outside dewatering is put into bucket and first stirs;
S102: then pack stirrer into stirring even material, then add water, stir 5 minutes～8 minutes;
S103: after being stirred, first dry ground and cement are packed in grinding tool, add straw powder and terra alba to continue tamping after tamping again, layering adds, tamping makes full brick moulding intact, then plate is above covered to extrusion molding;
S104: through form removal in 12 hours, the stalk cement-earth insulating brick that obtains completing.
In step S101: straw powder is powdered rice hulls, in rice husk containing 40% robust fibre (comprising lignin fibre and Mierocrystalline cellulose) and the five-carbon sugar polymkeric substance (being mainly hemicellulose) of 20% left and right, in addition, approximately contain the organic compound such as 20% ash content and a small amount of crude protein, crude fat, general its water content of rice husk is 12% left and right, carbon containing 36%, nitrogenous 0.48%, phosphorous 0.32%, containing potassium 0.27%, powdered rice hulls proportion is 0.4274g/cm
2, owing to being powder, so water-absorbent is very strong, straw powder can also be used wheat, paddy rice, corn, potato class, oil plant, cotton, sugarcane and other farm crop.
In step S101: dry ground, make the mud that clears out when insulating brick dry ground used is channel cleanout, after mud is transported back, first on the ground air-dry, then put in baking oven and dry 6 hours, take out afterwards coolingly, then mud is put into pulverizer and pulverize; Every physical properties of dry ground is as shown in table 1-table 3;
The water ratio of table 1 dry ground:
| Aluminium box number | Lid (g) | Lid+wet soil (g) | Lid+dry ground (g) | Bore the degree of depth (mm) | Water ratio |
| 7 | 16.58 | 27.13 | 24.16 | 14.197 | 0.39 |
| 18 | 15.55 | 29.05 | 25.26 | 14.197 | 0.39 |
| 16 | 15.56 | 25.29 | 22.39 | 18.4 | 0.42 |
| 87 | 16.12 | 33.96 | 28.62 | 18.4 | 0.42 |
| 21 | 17.03 | 30.15 | 27.07 | 7.567 | 0.31 |
| 69 | 15.97 | 30.71 | 27.24 | 7.567 | 0.31 |
| 70 | 15.98 | 32.72 | 28.42 | 9.533 | 0.35 |
| 71 | 16.1 | 32.53 | 28.56 | 9.533 | 0.35 |
The particle proportion of table 2 dry ground
The particle diameter of table 3 dry ground
By the experiment of following resistance to compression and folding strength, the present invention is described further:
One, resistance to compression experiment:
The experimental study of stalk cement-earth insulating brick ultimate compression strength, ultimate compression strength is one of important indicator of research material Main Mechanical, under to a certain degree, the height of ultimate compression strength has just determined the multiple mechanical property of masonry, the size of ultimate compression strength has determined the strength grade of stalk cement-earth insulating brick, and then has affected the design load of masonry, and has affected to a certain extent their use range, so the ultimate compression strength of experiment carry out to(for) stalk cement-earth insulating brick is necessary;
1, stalk cement-earth insulating brick compression strength test choosing and processing
Choose stalk cement-earth insulating brick and carry out ultimate compression strength experiment, first with cutting machine, brick is cut from centre, be divided into 2 parts of similar size, the length of every a brick all should be more than or equal to 110mm, and the cut-out mouth of two bats of same sample stacks on the contrary, and superimposed part must not be less than 100mm, be the experiment test specimen of ultimate compression strength, if during not enough 100mm, should reject, separately get standby sample and supply;
2, the resistance to compression experimental procedure of stalk cement-earth insulating brick
(1) measure each two of the joint face of each test specimen or the length and width sizes of load face, get respectively its mean value, be accurate to 1mm;
(2) test specimen is lain in to the central authorities of increased pressure board, perpendicular to load face loading, loading should uniform and stable, must not occur to impact or clash into, and loading speed is advisable with 4kN/s, until test specimen destroys, records maximal destruction load P;
(3) calculating of result and evaluation: the ultimate compression strength of every sample is calculated by following formula, is accurate to .01MPa,
R
p=P/LB
R in formula
p-Compressive Strength, unit is MPa (MPa);
N-maximal destruction load, unit is newton (N);
The length of L-load face (joint face), unit is millimeter (mm);
The width of B-load face (joint face), unit is millimeter (mm);
Experimental result represents with the arithmetical av of sample ultimate compression strength and standard value or monolithic minimum value, is accurate to 0.1MPa;
(4) resistance to compression experimental result and the analysis of stalk cement-earth insulating brick
In the experiment of stalk cement-earth insulating brick, first there is crack in test block, then along the crack development of body, last test specimen is damaged by pressure, destroys numerical value as shown in the table,
Table 4 stalk cement-earth insulating brick ultimate compression strength experimental result
So the ultimate compression strength mean value of stalk cement-earth insulating brick is 8.1MPa;
The strength grade of fragment of brick is the important indicator of fragment of brick mechanical property, the strength grade of block is that the block ultimate compression strength that recorded by Standard test method assessment method is in accordance with regulations determined, according to the strength criterion of defined in national < < fired common brick > > GB5101-1998, strength grade is that the ultimate compression strength mean value of the fired common brick of MU10 must be more than or equal to 10.0MPa, the ultimate compression strength mean value of sludge fly ash fired common brick is 12.5MPa, and the ultimate compression strength mean value of stalk cement-earth insulating brick is 8.1MPa, only have fired common brick compressive strength standard 81%, and according to the intensity index of stipulating in national < < autoclaved fly ash brick > > JC239-2001, strength grade is that the ultimate compression strength mean value of the autoclaved fly ash brick of MU7.5 need only be more than or equal to 7.5MPa, the ultimate compression strength mean value of stalk cement-earth insulating brick is 8.1MPa, the ultimate compression strength of the autoclaved fly ash brick that is MU7.5 higher than strength grade
Hence one can see that, and the stalk cement-earth insulating brick that the present invention makes has reached required ultimate compression strength in the engineering having.
Two, the experimental study of stalk cement-earth insulating brick folding strength
According to the existing masonry standard of China, when determining the strength grade of Novel brick, only with the ultimate compression strength empirical average evaluation of type material brick, be used as evaluating the foundation of its strength grade, but the size of the various novel block materials that different manufacturers produces, proportioning, there is very big-difference in production technique etc., even if the block of same batch that same manufacturer produces, its mechanical property also can exist some larger differences, therefore only by the ultimate compression strength of block, its strength grade evaluation is lost to science, reasonableness, so, stalk cement-earth insulating brick is necessary to carry out folding strength experimental study, while is data by experiment, stalk cement-earth insulating brick folding strength is analyzed the impact of its mechanical property of masonry,
1, stalk cement-earth insulating brick folding strength test specimen choosing and processing
Choose 3 blocks of stalk cement-earth insulating bricks and be placed on after soaking 24h in the water that temperature is (20 ± 5) ℃ and take out, with wet cloth, wipe surperficial moisture and then carry out folding strength experiment;
2, the anti-folding experimental procedure of stalk cement-earth insulating brick
Experiment loading equipemtn adopts 50kN hydraulic universal experimental machine, and the relative error of experimental machine is not more than ± 1%, anti-ly reckons the actual amount after a discount the method that the loading form of testing adopts 3 loadings, and the radius-of-curvature of its its upper pressure roller and lower rod is 15mm, and a lower rod has one to link and fix;
The folding strength experimental procedure of brick:
(1) measure in accordance with regulations width and the height of sample, get respectively arithmetical av, be accurate to 1mm, the width of stalk cement-earth insulating brick and be highly respectively 115mm and 53mm;
(2) adjust the span of the lower rod of bend-proof clamp, the specification length that span is brick deducts 40mm, but specification length 190mm brick, its span is 160mm, the length of stalk cement-earth insulating brick is 240mm, so adjustment span is 200mm;
(3) the large face of test block lies in down on a roller, and sample both ends of the surface should be identical with the distance of lower roller, when sample has crack or indenture, should make facing down greatly of crack or indenture, with the at the uniform velocity loading of speed of 100N/s, until its maximum failing load P is recorded in test block fracture simultaneously;
3, result is calculated and evaluation: the folding strength of every sample calculates by following formula, is accurate to 0.01MPa,
R
c=3PL/2BH
2
R in formula
c-folding strength, unit is MPa (MPa);
P-maximal destruction load, unit is newton (N);
L-span, unit is millimeter (mm);
B-specimen width, unit is millimeter (mm);
H-height of specimen, unit is millimeter (mm);
Experimental result represents with arithmetical av and the monolithic minimum value of sample folding strength, is accurate to 0.01MPa;
4, anti-folding experimental result and the analysis of stalk cement-earth insulating brick
In the folding strength experiment of stalk cement-earth insulating brick, along with the increase of load, stalk cement-earth insulating brick starts to occur crack in the position that approaches centre of lower surface, continues to load, and crack development, cracks into two brick,
Table 5 stalk cement-earth insulating brick folding strength experimental result
So the folding strength mean value of stalk cement-earth insulating brick is 2.98MPa;
When brick structures is when suffering stress, at this moment the main pressurized of fragment of brick, cut, the comprehensive action of the complex stress such as curved and draw, in thering is the experiment of identical strength grade brick structures, the cracking load of different brick structuress exists larger difference, but the ultimate load of masonry is more approaching, this shows can not reflect the serviceability of fragment of brick in masonry completely only according to the ultimate compression strength of single fragment of brick, compare with common sintered clay brick, the folding strength mean value of ordinary sinter clay brick is 2.52MPa, and the folding strength mean value of stalk cement-earth insulating brick is 2.98MPa, can draw, the folding strength of stalk cement-earth insulating brick is a little more than the folding strength of ordinary sinter clay brick.
The present invention's stalk cement-earth used insulating brick is compared with low cost with general brick, the following character of stalk fibre building block has reduced production cost: one season of (1) stalk grows up to, and is agriculture byproduct; (2) China's growth rice (wheat) farming region is wide, and the construction of agriculture residence is directly made building materials in local rice (wheat) vitellarium, has reduced transportation cost; (3) use of stalk does not need extra processing charges, and " bale " that conventionally gathers in the direct bundling of facility is exactly stalk fibre building block; (4) construct simple and easyly, labour cost is low; Also possess skills simple and easy and feature short construction period of stalk cement-earth insulating brick.Stalk fibre blockwork technology is easy to learn, has very large promotional value.The most of agrarian areas of China have possessed the technology of machinery packing bale, do not possess the area of mechanical conditions, adopt mould building, also can make stalk fibre building block.Do not need to train special building block manufacturing technology.Meanwhile, the easy construction of stalk fibre blockwork, completely dry operation, only needs esting and fixes with woven wire or bamboo reinforcement, and technology is very simple, short construction period.And discarded material reusable edible, is easy to degraded, the building waste producing is few, in use procedure, as the exsertile building maintenance material of the property such as heat insulating and sound insulating, stalk cement-earth insulation blocks can reduce building calorific loss, saves winter heating energy consumption for cooling in summer, realizes energy-saving and emission-reduction.
In sum, stalk cement-earth thermal-insulation masonry wall has wide development space, especially draw materials easily, make simple, easy construction, with low cost, reusable edible, be easy to degraded, this is the major reason of selecting this graduation project problem, and for the work of the novel environmental-friendly construction material aspect that goes in for the study provides the chance of a practice later, can make has darker understanding to the knowledge of material aspect.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. a formula of preparing stalk cement heat preserving brick, is characterized in that, this formula of preparing stalk cement heat preserving brick is, dry ground: cement: straw powder: terra alba: water=40:19:7.5:7.5:26.
2. a method of preparing stalk cement heat preserving brick, is characterized in that, this method of preparing stalk cement heat preserving brick comprises the following steps:
Step 1, according to formula dry ground: cement: straw powder: terra alba: water=40:19:7.5:7.5:26, weighed starting material, the material outside dewatering is put into bucket and first stirs;
Step 2, then packs stirrer into stirring even material, then adds water, stirs 5 minutes～8 minutes;
Step 3, after being stirred, first packs dry ground and cement in grinding tool into, adds straw powder and terra alba to continue tamping after tamping again, and layering adds, tamping makes full brick moulding intact, then plate is above covered to extrusion molding;
Step 4, through form removal in 12 hours, the stalk cement-earth insulating brick that obtains completing.
3. the method for preparing stalk cement heat preserving brick as claimed in claim 2, it is characterized in that, in step 1, straw powder adopts containing 40% robust fibre, 20% five-carbon sugar polymkeric substance with containing the powdered rice hulls of 20% ash content and a small amount of crude protein, crude fat organic compound, and powdered rice hulls proportion is 0.4274g/cm
2.
4. the method for preparing stalk cement heat preserving brick as claimed in claim 3, is characterized in that, straw powder can also be used wheat, paddy rice, corn, potato class, oil plant, cotton, sugarcane.
5. the method for preparing stalk cement heat preserving brick as claimed in claim 2, is characterized in that, in step 1, the making method of dry ground is:
Make the mud that clears out when insulating brick dry ground used is channel cleanout, after mud is transported back, first on the ground air-dry, then put in baking oven and dry 6 hours, take out afterwards coolingly, then mud is put into pulverizer and pulverize.
6. the method for preparing stalk cement heat preserving brick as claimed in claim 2, is characterized in that, the folding strength mean value of stalk cement-earth insulating brick is 2.98MPa.
7. the method for preparing stalk cement heat preserving brick as claimed in claim 2, is characterized in that, the ultimate compression strength mean value of stalk cement-earth insulating brick is 8.1MPa.
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| CN109779130A (en) * | 2019-01-24 | 2019-05-21 | 赵小兵 | Self-heat-insulating straw brick and preparation method thereof and device |
| CN110950601A (en) * | 2019-11-30 | 2020-04-03 | 黄金京 | Novel environment-friendly brick and preparation method thereof |
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| CN103924713B (en) * | 2014-04-09 | 2015-12-02 | 葛加君 | Cast-in-place ecological heat preservation wall construction method |
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| CN105421619A (en) * | 2014-09-21 | 2016-03-23 | 廖树汉 | Collapse-free and environment-friendly branch wall allowing fire-free usable area of building to be multiplied |
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| CN110950601A (en) * | 2019-11-30 | 2020-04-03 | 黄金京 | Novel environment-friendly brick and preparation method thereof |
| CN116177964A (en) * | 2023-03-09 | 2023-05-30 | 南京工业大学 | Method for preparing regenerated insulating brick from puffed corn straw |
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