CN107009484A - A kind of preparation method of high performance concrete Self-heat-insulation composite building block - Google Patents

Abstract

The invention discloses a kind of preparation method of high performance concrete Self-heat-insulation composite building block, its drip irrigation device is the preparation for the preparation and heat-insulation material for including housing, heat-insulation material includes foam concrete and light thermal-insulation core body, and specific preparation process is as follows：Step 1：Prepare foam concrete；Step 2：Light thermal-insulation core body is chosen, and light thermal-insulation core body is cut into unit core body, the foam concrete completed in step 2 is cut into unit filling block；Step 3：Prepare high performance concrete housing slurry；Step 4：Assign unit core body and unit filling block, unit core body and unit filling block are fixed on mould, high performance concrete housing slurry and then vibrations, extrusion forming are poured into mould, conserved after shaping, obtained high performance concrete Self-heat-insulation composite building block, which depends merely on itself, can meet the demand of insulation, without doing other isothermal holdings, building heat preservation and structure same life-span can be achieved.

Description

A kind of preparation method of high performance concrete Self-heat-insulation composite building block

Technical field

The present invention relates to concrete segment field, more particularly to a kind of preparation of high performance concrete Self-heat-insulation composite building block Method.

Background technology

External Thermal Insulation Technology for External is the use Building technology produced in Europe the seventies in last century, with regard to its technology itself It is mature and reliable, but occurs in that " deformity " develops during popularization and application, one is that external wall outer insulation skill has been focused in transition Art, have ignored the importance of other technologies, occur in that the phenomenon of new building " wearing cotton dress "；Two be that counterfeit and shoddy goods are excessive, Work progress is used inferior materials and turned out substandard goods, it is impossible to control construction quality in strict accordance with standard schedule；Three be manufacturing enterprise develop at a too fast speed, it is excessively indiscriminate, Technical merit is low, does not form industrialized scale, and quality control is unstable, and the presence of these problems result in external wall outer insulation Engineering hollowing, the quality security problem such as ftracture, seep water, coming off, catching fire happen occasionally, and bring very big safety hidden to construction quality Suffer from.

Therefore, the way of aerated concrete outer wall external heat insulating wall is occurred in that, but wall of aerated concrete block is built by laying bricks or stones Separated with heat insulating work, it is necessary to which secondary construction, external thermal insulation lifetime is short.

From the foregoing, external wall heat insulation system is in following development, it is difficult to be highly suitable for the guarantor of external wall Temperature.

The content of the invention

It is an object of the invention to provide a kind of preparation method of high performance concrete Self-heat-insulation composite building block, obtained high property Energy concrete self-insulating composite block, which depends merely on itself, can meet the demand of insulation, without doing other isothermal holdings, can be achieved Building heat preservation and structure same life-span.

The present invention above-mentioned technical purpose technical scheme is that：A kind of high performance concrete self-insurance The preparation method of warm composite block, includes the preparation and the preparation of heat-insulation material of housing, and heat-insulation material includes bubble Foam concrete and light thermal-insulation core body, specific preparation process are as follows：

Step 1：Prepare foam concrete；

Step 2：Light thermal-insulation core body is chosen, and light thermal-insulation core body is cut into unit core body,

The foam concrete completed in step 1 is cut into unit filling block；

Step 3：Prepare high performance concrete housing slurry；

Step 4：Unit core body and unit filling block are assigned, unit core body and unit filling block are fixed on mould, to High performance concrete housing slurry and then vibrations, extrusion forming are poured in mould, is conserved after shaping；Conserve the height terminated Performance concrete Self-heat-insulation composite building block includes high performance concrete housing, the unit being filled in high performance concrete housing and filled out Block and multiple unit core bodys are filled, high performance concrete housing self-insulation composite concrete building block is opened up along its own length direction There are concave notches.

By using above-mentioned technical proposal, by the use of high performance concrete housing as load-bearing and enclosed structure, inside is compound The thermal conductivity factor of filled and process concrete and light thermal-insulation core body, foam concrete and light thermal-insulation core body tool is low, and Density is small so that composite thermal self-insulation building block has good thermal and insulating performance, and fire protecting performance is excellent, is combined certainly in the present invention The exterior wall that insulation blocks are built, it is not necessary to do other isothermal holdings, you can meet insulation demand, realizes that building heat preservation is same with structure In the life-span, while reducing process, efficiency of construction is improved, the duration is shortened；Meanwhile, the Self-heat-insulation composite building block in the present invention is certainly Heavy and light, intensity is high, reduces the deadweight of building, it is ensured that the intensity of building；, can be effective and water absorption rate is small, shrink low Avoid the blockwork common quality defect problem such as wall hollow drum, cracking, infiltration；Composite thermal self-insulation building block is made using high performance concrete For building-block shell material, when pouring, because high performance concrete has preferable self compacting ability, and vibrating forming is combined, then High performance concrete housing slurry quickly and the gap preferably between fills unit core body and mould can contribute to high property Energy concrete shell slurry is bonded with unit core body and unit filling block, is improved high performance concrete housing and is filled with unit Cohesive force between block and between high performance concrete housing and unit core body so that high performance concrete housing has itself During stronger height, the intensity of whole high performance concrete Self-heat-insulation composite building block is also improved；And due to being used in production Vibrating forming, then without steam pressure, calcining, reduce pollution of the energy consumption to environment in production process.

Preferably, light thermal-insulation core body is styrofoam.

By using above-mentioned technical proposal, the thermal conductivity factor of styrofoam is less, and density is smaller, can effectively improve and be combined certainly The heat-insulating property of insulation blocks, and deadweight is reduced, it is the appropriate selection of light thermal-insulation core body.

Preferably, in step 1 foam concrete preparing raw material, count by weight, including 180-200 parts of cement, water 80-100 parts, 70-90 parts of flyash, 0.5-0.7 parts of foaming agent, 0.6-0.9 parts of foam stabilizer, 0.4-0.6 parts of brucite fiber swashs Send out 3-6 parts of agent.

By using above-mentioned technical proposal, the thermal conductivity factor of foam concrete is relatively low, with good heat-insulating property, foaming Agent coordinates with cement, water and flyash can produce the bubble for enriching densification, and the setting of foam stabilizer can increase bubble film Mechanical strength, can also increase viscosity, thus improve the mechanical strength of bubble film, be allowed to be not easily broken；Exciting agent can be with Promote the pozzolanic reaction of flyash, and then improve the intensity of foam concrete, at the same time, the addition of brucite fiber also may be used To increase the intensity of foam concrete, the defect of foam concrete low strength is made up to a certain extent；Meanwhile, foam stabilizer Addition is improved, and adds viscosity so that one layer of lubricating film is formed in slurry, further increases the scattered of brucite fiber, Brucite fiber is contributed to be evenly dispersed in foam concrete and play a role；Meanwhile, brucite fiber is by more tiny Single fiber composition fibre bundle, and single fiber has preferably toughening effect.

Preferably, the specific make step of foam concrete is as follows：

Step a：First by brucite fiber and water according to 4:5 ratio, while the foam stabilizer addition fiber for adding 1/3 disperses Stirred ten minutes in mixer, it is stand-by that brucite fiber cream is made in closed placement 24h；Step b：By cement, flyash and step 1min is stirred in brucite fiber cream input forced stirrer in rapid a, exciting agent, foaming agent, remaining foam stabilizing is then added Discharged after agent and 1/3 water stirring 1min, be then placed in mould and vibrate, conserve, maintenance is cut after terminating, form foam and mix Solidifying soil paste body；

Step c:Foam concrete slurry is put into mould and vibrates, conserve, maintenance is cut after terminating.

By using above-mentioned technical proposal, brucite fiber, which has, can preferably split a point property, by brucite fiber and foam stabilizing Brucite fiber cream is made after action of forced stirring is uniform after agent and water mixing, a point brucite fiber beam can be effectively split, effectively Ground solves fiber being entangled with application process and beats clique problem, further helps in brucite fiber and plays activeness and quietness effect； The foam concrete prepared by above-mentioned steps, with preferable heat-insulating property, also improves the intensity of foam concrete.

Preferably, in step 3 high performance concrete housing slurry raw material, number scale, including cement 330-355 by weight Part, 145-160 parts of water, 40-46 parts of flyash, miberal powder 68-75,240-270 parts of haydite, 740-760 parts of sand, additive 13-18 Part.

By using above-mentioned technical proposal, miberal powder and flyash are the concrete admixtures of high-quality, are added to concrete In can effectively reduce the cost of concrete, while alkali-aggregate reaction can be suppressed, reduce the heat of hydration, improve the closely knit of concrete Degree；Sand can fill the space of lightweight aggregate, improve the viscosity of concrete, also make it that concrete is more closely knit, improve concrete Intensity；Above-mentioned raw materials coordinate the effect of additive, it is ensured that the intensity of high performance concrete housing, while also having certain guarantor Warm nature energy.

Preferably, additive includes organic fiber, water reducer and waterproofing agent, wherein organic fiber 4-6 parts, water reducer 6- 7 parts, 3-5 parts of waterproofing agent.

By using above-mentioned technical proposal, the addition of organic fiber can further increase the strong of high performance concrete housing Degree, while organic fiber has preferable heat-resisting quantity, the fiber in high temperature in concrete can dissolve, volatilize, and form many The hole of connection, is released the steam pressure that high temperature action is produced, so that improve the resistance to elevated temperatures of high performance concrete, So that the loss of strength in the event of high temperatures of high performance concrete housing is relatively low；The addition of water reducer can ensure that high-performance is mixed The mobility of solidifying soil cursting body；The addition of waterproofing agent, can make it that the space of mortar and concrete is fine and close, further improve high property Can concrete intensity, while waterproofing agent can improve the caking property of mortar, with the uniform ability of the quick mix of mortar, from And contribute to organic fiber uniformly to disperse, and then contribute to organic fiber to be evenly dispersed in slurry, the addition of waterproofing agent The cohesive force between high performance concrete housing and unit core body and unit filling block can also be improved, is further increased whole The intensity of individual Self-heat-insulation composite building block.

Preferably, the specific make step of high performance concrete housing slurry is as follows：

Step A：Waterproofing agent, 1/5 water and organic fiber are added in fiber mixer and stir 2min, organic fiber is formed Mixture；

Step B：Cement, flyash are added into new stirred tank, miberal powder, haydite, sand is dry stirs 30s, be subsequently poured into step A and make Into organic fiber mixture, continue stir 60s.

By using above-mentioned technical proposal, first waterproofing agent and organic fiber are stirred, can be in advance by organic fibre Dimension is uniformly dispersed, and is then mixed, is further stirred with the raw material such as cement again so that fiber carries out further It is scattered.

In summary, the invention has the advantages that：1st, obtained composite thermal self-insulation building block has excellent heat-insulated Performance, the demand of insulation can be met by depending merely on itself, without doing other isothermal holdings, and building heat preservation and structure same longevity can be achieved Life；2nd, have the advantages that it is high from heavy and light, intensity, and with excellent resistance to elevated temperatures；3rd, construction costs, Ke Yiman are reduced The requirement of sufficient building energy conservation.

Embodiment

Fig. 1 is a kind of structural representation of high performance concrete Self-heat-insulation composite building block；

Fig. 2 is the structural representation for embodying concave notches.

In figure, 1, high performance concrete housing；11st, concave notches；2nd, unit core body；3rd, unit filling block.

A kind of preparation method of high performance concrete Self-heat-insulation composite building block, the preparing raw material that the present invention is selected is as follows：It is first First make building block needed for raw material be：Cement selection Portland cement, sand selects Hebei Zunhua river sand, modulus of fineness 2.6；My god Cheng Jin S95 grades of Tianjin ground granulated blast furnace slag；Tianjin North SinKiang environment-friendly building materials Co., Ltd I grade of flyash of F；Haydite is bought from Hebei； Water reducer is that FDN high efficiency water reducing agents, waterproofing agent are that higher aliphatic acids waterproofing agent is purchased from Jiangsu Province Hai'an haydite oiling factory ；Organic fiber selects polypropylene fibre, can be bought from Beijing Guo Hao chemical machineries Co., Ltd, from running water.

Make foam concrete needed for raw material be：Cement, flyash and miberal powder are starched with high performance concrete housing It is identical that material is used；Foaming agent can select rosin foaming agent, and foam stabilizer selects protein-based, and exciting agent is swashed from sulfate Agent is sent out, above-mentioned three kinds of materials can be bought from market；Brucite fiber can also be bought from market.

Insulation material B is styrofoam, can be bought from market.

Embodiment：A kind of preparation method of high performance concrete Self-heat-insulation composite building block, includes preparation and the guarantor of housing The preparation of warm heat-insulating material, heat-insulation material includes foam concrete and light thermal-insulation core body, and specific preparation process is such as Under：As depicted in figs. 1 and 2,

Step 1：Prepare foam concrete；

Step 2：Light thermal-insulation core body is chosen, and light thermal-insulation core body is cut into unit core body 2, will be completed in step 1 Foam concrete cut into unit filling block 3；

Step 3：Prepare high performance concrete housing slurry；

Step 4：Unit core body 2 and unit filling block 3 are assigned, unit core body 2 and unit filling block 2 are fixed on mould On, high performance concrete housing slurry and then vibrations, extrusion forming are poured into mould, is conserved after shaping；Maintenance terminates High performance concrete Self-heat-insulation composite building block include high performance concrete housing 1, be filled in high performance concrete housing 1 Unit filling block 3 and multiple unit core bodys 2, high performance concrete housing self-insulation composite concrete building block is along its own length Direction offers concave notches 11.

Its specification shell sizes can be 390mm*240mm*190mm, 390mm*240mm*90mm, 290mm*240mm* 190mm, 290mm*240mm*90mm, 190mm*240mm*190mm, 190mm*240mm*90mm, Self-heat-insulation composite building block along its The two ends end of length direction offers concave notches 11, can effectively reduce heat bridge position thermal loss at puzzle joint.

The preparation of foam concrete in step 1：The raw materials used consumption of foam concrete is recorded in table 1：Table 1：Foam The raw materials used consumption record sheet of concrete：

The foam concrete preparation process of embodiment 1 to embodiment 6 is as follows：

Step a：First by brucite fiber and water according to 4:5 ratio, while the foam stabilizer addition fiber for adding 1/3 disperses Stirred ten minutes in mixer, it is stand-by that brucite fiber cream is made in closed placement 24h；

Step b：1min will be stirred in brucite fiber cream input forced stirrer in cement, flyash and step a, then Discharged after adding exciting agent, foaming agent, remaining foam stabilizer and 1/3 water stirring 1min, form foam concrete slurry；

Step c:Foam concrete slurry is put into mould and vibrates, conserve, maintenance is cut after terminating.

The performance test of foam concrete：100mm*100mm*100mm cube test specimen, and 300mm* will be fabricated to 300mm*300mm flat test piece；Test specimen completes form removal after 48h, as temperature (20 ± 3) DEG C, humidity more than 95% Tested after conserving 28d in standard curing room.

The mechanical property of foam concrete is with reference to GB/T50081-2002《Normal concrete mechanical test method mark It is accurate》Tested；Thermal conductivity factor is with reference to GB10294-2008《Technology of Steady State Thermal Resistance of Thermal Insulating Material and the measure protective heat plate about characteristic Method》Tested, while the test result for measuring foam concrete test specimen mechanical property and thermal conductivity factor is recorded in table 2：

Table 2, embodiment 1 intensity of foam concrete and thermal conductivity factor record sheet into embodiment 6：

From table 2 it can be seen that the thermal conductivity factor of the foam concrete into embodiment 6 of embodiment 1 0.45-0.55w/ (mK) it Between, the thermal conductivity factor of normal concrete is general in 1.28w/ (mK) left and right, it is clear that the heat conduction of foam concrete in the present invention Coefficient is significantly lower than the thermal conductivity factor of normal concrete, and with preferable heat-insulating property, this is due to that foam concrete is apparent close Degree is small, and porosity is high, and inside has the abscess of substantial amounts of fine uniform；28d intensity also complies with the intensity that concrete uses will Ask.

The comparative example that foam concrete is prepared in the present invention is described below.

Comparative example 1, according to respective proportioning, and prepares foam coagulation into comparative example 3 according to the proportioning in embodiment 4 Soil, then determines mechanical property and thermal conductivity factor, and recorded.

Table 3, comparative example 1 mechanical property of foam concrete and thermal conductivity factor record sheet into comparative example 3.

	Comparative example 1	Comparative example 2	Comparative example 3
				Cement (kg)	194	194	194
Water (kg)	94	94	94
				Flyash (kg)	85	85	85
Foaming agent (kg)	0.63	0.63	0.63
				Foam stabilizer (kg)	0.76	0	0
Brucite fiber (kg)	0	0	0
				Exciting agent (kg)	4.2	4.2	0
28d intensity (Mpa)	31.2	30.1	29.2
				Thermal conductivity factor (w/ (mK)	0.47	0.50	0.52

From table 3 it can be seen that comparative example 1 is as different from Example 4, brucite fiber, foam concrete 28d are not added Intensity decline it is higher, the intensity of foam concrete can be improved by illustrating the addition of brucite fiber；And thermal conductivity factor is also Rise, but ascensional range is less, illustrates that the addition of brucite fiber is favorably improved the heat insulation effect of foam concrete, still Influence amplitude is smaller.

For comparative example 2, compared with Example 4, brucite fiber and foam stabilizer are not added, then foam concrete is strong Degree decline is more, while being contrasted with comparative example 1, it does not add foam stabilizer, and its intensity is also less than the intensity in comparative example 1, This explanation brucite fiber adds the intensity for being favorably improved foam concrete with foam stabilizer simultaneously；Similarly, in this comparative example Thermal conductivity factor is more than embodiment 4, and more than comparative example 1, this explanation brucite fiber is added jointly with foam stabilizer to be helped to carry The heat insulation effect of high foam concrete.

Comparative example 3：For comparative example 3, compared with Example 4, brucite fiber, exciting agent and foam stabilizer are not added, Then the intensity decline of foam concrete is more, while being contrasted with comparative example 1, it does not add exciting agent, causes its intensity to be also less than Intensity in comparative example 1, this explanation brucite fiber, foam stabilizer and exciting agent are added simultaneously is favorably improved foam concrete Intensity；Similarly, the thermal conductivity factor in this comparative example is more than embodiment 4, and more than comparative example 2, this explanation brucite fiber, Foam stabilizer and exciting agent add the heat insulation effect for being favorably improved foam concrete jointly.

The preparation of high performance concrete housing slurry in step 3：The raw materials used consumption of high performance concrete housing slurry Record is in table 4：

Table 4：The raw materials used consumption record sheet of high performance concrete housing slurry：

The foam concrete preparation process of embodiment 1 to embodiment 6 is as follows：

Step A：Waterproofing agent, 1/5 water and organic fiber are added in fiber mixer and stir 2min, organic fiber is formed Mixture；

Step B：Cement, flyash, miberal powder, haydite, sand are added into new stirred tank and does 30s, is subsequently poured into step A and is made Organic fiber mixture, continue stir 60s.

The performance test of high performance concrete housing slurry：100mm*100mm*100mm cube test specimen will be fabricated to, with And 300mm*300mm*300mm flat test piece；Test specimen completes form removal after 48h, as temperature (20 ± 3) DEG C, humidity Tested after conserving 28d in more than 95% standard curing room.

The mechanical property of self-insulating concrete is with reference to GB/T50081-2002《Normal concrete mechanical test method mark It is accurate》Tested；Thermal conductivity factor is with reference to GB10294-2008《Technology of Steady State Thermal Resistance of Thermal Insulating Material and the measure protective heat plate about characteristic Method》Tested, while the test result record for measuring high performance concrete housing test specimen mechanical property and thermal conductivity factor exists In table 5：

Table 5, the mechanical property and Determination of conductive coefficients result of the high performance concrete housing slurry into embodiment 12 of embodiment 7 Record sheet：

As can be seen from Table 5, the thermal conductivity factor of the high performance concrete housing slurry into embodiment 12 of embodiment 7 is in 0.82- Between 0.87w/ (mK), the thermal conductivity factor of normal concrete is general in 1.28w/ (mK) left and right, it is clear that high property in the present invention The thermal conductivity factor of energy concrete shell slurry is less than the thermal conductivity factor of normal concrete, with certain heat insulation effect；28d's Intensity has reached 63.1Mpa, with higher intensity.

Test the resistance to elevated temperatures of high performance concrete housing test specimen, be recorded as implementing 13- embodiments 15 respectively, its according to It is prepared by the dispensing of embodiment 4:

This experiment heating reaches constant temperature 2h after temperature in fire, it is sufficient to meets when fire is held and requires, the heating mechanism control of this experiment In 300 DEG C, 500 DEG C, 700 DEG C of three temperature grades, each testpieces is heated since normal temperature, and temperature often raises 100 DEG C, perseverance Warm 20min, when temperature reaches predetermined temperature grade, just starts after constant temperature 2h, constant temperature 2h, takes out test block, pours water cooling, then Measure its intensity and calculate loss of strength rate, record in table 6.

Loss of strength record sheet after table 6, high performance concrete housing test specimen high temperature：

	300℃	500℃	700℃
				Initial strength (Mpa)	63.1	63.1	63.1
Intensity (Mpa) after cooling	56.79	44.8	34.71
				Loss of strength rate (%)	10	29	45

As can be seen from Table 6, with the rise of temperature, the intensity of high performance concrete housing is gradually reduced, and loss of strength rate increases Plus, and intensity of the loss late after loss is still higher.

The raw material of research high performance concrete housing influences on the resistance to elevated temperatures of high performance concrete housing below, respectively Comparative example 4 is recorded as to comparative example 5, wherein comparative example 4 preparation method of high performance concrete housing and implementation into comparative example 5 Example 10 is identical, and specific proportioning record is in table 7：

Table 7, the proportioning record sheet of comparative example 4 to comparative example 5：

Table 8, comparative example 4 and the high performance concrete housing resistance to elevated temperatures measurement result record sheet in comparative example 5：

As can be seen from Table 8, comparative example 4 compared with Example 10, organic fiber is not added, then under same temperature grade, Loss of strength rate is relatively low in contrast loss of strength rate, comparative example 4, illustrates the addition of organic fiber, is favorably improved high-performance and mixes The resistance to elevated temperatures of solidifying soil cursting body.

Comparative example 5 does not add waterproofing agent and organic fiber compared with comparative example 10, compared with comparative example 4, does not add anti- Loss of strength rate in aqua, comparative example 5 is more than in embodiment 10, and more than in comparative example 4, this explanation waterproofing agent with it is organic Fiber adds the resistance to elevated temperatures for being favorably improved high performance concrete housing jointly.

According to《Normal concrete small hollow block》(GB8239-1997) and《Light weight small insulating concrete hollow building Block》(GBT1529-2002) main technical performance index for, measuring high performance concrete heat insulation building block is recorded in table 9：

Table 9, the main technical performance index record sheet of high performance concrete heat insulation building block：

As can be seen from Table 9, the indices of high performance concrete heat insulation building block are superior to standard value in the present invention, every Good properties.

This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this All protected in the right of invention by Patent Law.

Claims (7)

1. a kind of preparation method of high performance concrete Self-heat-insulation composite building block, it is characterised in that：Preparation including housing and The preparation of heat-insulation material, heat-insulation material includes foam concrete and light thermal-insulation core body, specific preparation process It is as follows：

Step 1：Prepare foam concrete；

Step 2：Light thermal-insulation core body is chosen, and light thermal-insulation core body is cut into unit core body (2), will have been made in step 1 Into foam concrete cut into unit filling block (3)；

Step 3：Prepare high performance concrete housing slurry；

Step 4：Unit core body (2) and unit filling block (3) are assigned, unit core body (2) and unit filling block (3) is fixed On mould, high performance concrete housing slurry and then vibrations, extrusion forming are poured into mould, is conserved after shaping；Support The high performance concrete that shield terminates includes high performance concrete housing (1), the unit being filled in high performance concrete housing (1) Filling block (3) and multiple unit core bodys (2), high performance concrete housing (1) self-insulation composite concrete building block along its own Length direction offers concave notches (11).

2. a kind of preparation method of high performance concrete Self-heat-insulation composite building block according to claim 1, it is characterised in that： Light thermal-insulation core body is styrofoam.

3. a kind of preparation method of high performance concrete Self-heat-insulation composite building block according to claim 2, it is characterised in that： The preparing raw material of foam concrete, is counted by weight in step 1, including 180-200 parts of cement, 80-100 parts of water, flyash 70-90 parts, 0.5-0.7 parts of foaming agent, 0.6-0.9 parts of foam stabilizer, 0.4-0.6 parts of brucite fiber, 3-6 parts of exciting agent.

4. a kind of preparation method of high performance concrete Self-heat-insulation composite building block according to claim 3, it is characterised in that： The specific make step of foam concrete is as follows：

Step a：First by brucite fiber and water according to 4:5 ratio, while the foam stabilizer addition fiber for adding 1/3 disperses Stirred ten minutes in mixer, it is stand-by that brucite fiber cream is made in closed placement 24h；Step b：By cement, flyash and step 1min is stirred in brucite fiber cream input forced stirrer in rapid a, exciting agent, foaming agent, remaining foam stabilizing is then added Discharged after agent and 1/3 water stirring 1min, be then placed in mould and vibrate, conserve, maintenance is cut after terminating, form foam and mix Solidifying soil paste body；

Step c:Foam concrete slurry is put into mould and vibrates, conserve, maintenance is cut after terminating.

5. a kind of preparation method of high performance concrete Self-heat-insulation composite building block according to claim 4, it is characterised in that： The raw material of high performance concrete housing slurry, by weight number scale in step 3, including 330-355 parts of cement, 145-160 parts of water, 40-46 parts of flyash, miberal powder 68-75,240-270 parts of haydite, 740-760 parts of sand, 13-18 parts of additive.

6. a kind of preparation method of high performance concrete Self-heat-insulation composite building block according to claim 5, it is characterised in that： Additive includes organic fiber, water reducer and waterproofing agent, wherein organic fiber 4-6 parts, 6-7 parts of water reducer, waterproofing agent 3-5 Part.

7. a kind of preparation method of high performance concrete Self-heat-insulation composite building block according to claim 6, it is characterised in that： The specific make step of high performance concrete housing slurry is as follows：

Step A：Waterproofing agent, 1/5 water and organic fiber are added in fiber mixer and stir 2min, organic fiber is formed Mixture；

Step B：Cement, flyash are added into new stirred tank, miberal powder, haydite, sand is dry stirs 30s, be subsequently poured into step A and make Into organic fiber mixture, continue stir 60s.