CN106554186B - Utilize the accurate measurement platform and its method of the preparation of superhigh intensity silicate material - Google Patents
Utilize the accurate measurement platform and its method of the preparation of superhigh intensity silicate material Download PDFInfo
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- CN106554186B CN106554186B CN201510642908.7A CN201510642908A CN106554186B CN 106554186 B CN106554186 B CN 106554186B CN 201510642908 A CN201510642908 A CN 201510642908A CN 106554186 B CN106554186 B CN 106554186B
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Abstract
The invention discloses a kind of accurate measurement platforms and its method using the preparation of superhigh intensity silicate material, the accurate measurement platform includes portland cement, silicon ash, levigate silica flour, haydite, steel fibre, high-performance water reducing agent and water, the portland cement, silicon ash, levigate silica flour, haydite, steel fibre, high-performance water reducing agent and water weight ratio be 1:(0.01-0.4): (0.01-0.5): (0.01-0.4): (0.01-0.20): (0.01-0.1): (0.01-0.5)；The specific surface area of the silicon ash is 20000-28000m2/ kg, average grain diameter are 0.1-0.3 μm, SiO290% or more content；Described levigate 20-50 μm of silica flour average particle size, SiO295% or more content；The haydite is ceramic particle of the partial size between 0.1-2mm.Superhigh intensity silicate material of the present invention has good comprehensive performance and service performance, and compression strength reaches 320MPa-450MPa, and bending strength reaches 80-120MPa, and hardness reaches HB260-320, good stability of the dimension, the production suitable for accurate measurement platform.
Description
Technical field
The present invention relates to a kind of accurate measurement platforms and its method using the preparation of superhigh intensity silicate material, belong to machine
Tool engineering field material.
Background technique
Accurate measurement platform is the datum level that instrument and meter, precision instrument, mechanical product are examined, it is desirable that has structure essence
It is close, homogeneous, stability is good, intensity is big, hardness is high, can keep high-precision feature under heavy load and general temperature.Often
There are the types such as stainless steel, ceramics, epoxy resin with accurate measurement platform.Superhigh intensity silicate material is with ordinary cement for original
Material by increasing the fineness and reactivity of component, and obtains novel under the action of high efficiency water reducing agent (super plasticizer)
Cement-base composite material；The material structure is fine and close, porosity is low, has many advantages, such as superhigh intensity, shock resistance, excellent in te pins of durability,
It is the ideal material for making high performance precision measuring table.
It is carried out at present about the report of superhigh intensity silicate material mainly around product preparation process.Liu Juanhong (Liu Juan
Red equal distribution of particles is to Reactive Powder Concrete performance and Effects on Microstructure [J] Wuhan University of Technology journal, and 2007,29
) (1): 26-29 the influence of the different conservation system of report to large dosage finely-powdered minerals Reactive Powder Concrete performance such as, tests table
After steam-cured and dry heating curing, pattern changes bright large dosage finely-powdered minerals Reactive Powder Concrete, the structure of gelinite
It is closely knit when steam-cured, be evenly distributed, obtained silicate material compression strength reaches 210MPa, and flexural strength reaches 38.8MPa.Field
Phoenix orchid (mechanical property research [J] Chinese architecture metal structure of the superhigh intensity silicate concrete such as Tian Fenglan, 2013,10:
223-224) etc. in the case where meeting hydrothermal synthesizing condition and molding mode, preparing has the performances such as high tenacity, low-density, low cost
Superhigh intensity silicate concrete material analyzes the high-strength aggregate of different addition quantity, to superhigh intensity silicate concrete mechanical property
Influence, obtained silicate material compression strength reaches 240MPa, and flexural strength reaches 37.5MPa.
Summary of the invention
Technical problem solved by the invention is to provide a kind of utilization superhigh intensity silicate material preparation accurate measurement
The method of platform by optimizing high efficiency water reducing agent, preferably aggregate component, and improves corresponding preparation process to promote silicate material
Expect comprehensive performance, makes that it is suitable for the production of accurate measurement platform.
The technical solution for realizing the aim of the invention is as follows: a kind of to be surveyed using the accurate of superhigh intensity silicate material preparation
Platform is measured, it includes portland cement, silicon ash, levigate silica flour, haydite, steel fibre, high-performance water reducing agent and water, the silicic acid
Salt cement, silicon ash, levigate silica flour, haydite, steel fibre, high-performance water reducing agent and water weight ratio be 1:(0.01-0.4):
(0.01-0.5): (0.01-0.4): (0.01-0.20): (0.01-0.1): (0.01-0.5).
The specific surface area of the silicon ash is 20000-28000m2/ kg, average grain diameter are 0.1-0.3 μm, SiO2Content 90%
More than；
The levigate silica flour is quartz sand through ball mill ball milling 1-4 hours, 20-50 μm of average particle size, SiO2Content
95% or more；
The haydite main component is Al2O3、SiO2, partial size is the high-density ultra-strength ceramic particle of 0.1-2mm.
The steel fibre is the straight steel fibre of copper coating, and length 6-13mm, diameter 0.2-0.5mm, tension is strong
Degree is 2000MPa.
The high-performance water reducing agent is polycarboxylic acid series high efficiency water reducing agent, and water-reducing rate is not less than 30%.
A method of accurate measurement platform is prepared using superhigh intensity silicate material, comprising the following steps:
The selection of step 1, raw material: subtract by portland cement, silicon ash, levigate silica flour, haydite, steel fibre, high-performance
The weight ratio of aqua and water is 1:(0.01-0.4): (0.01-0.5): (0.01-0.4): (0.01-0.20): (0.01-0.1):
(0.01-0.5) chooses every material with spare；
Step 2, stirring: portland cement, silicon ash, levigate silica flour are poured into blender, dry mixing 1-10 minutes, add pottery
Grain is stirred for 1-10 minutes, and steel fibre, high-performance water reducing agent and water-wet is added and mixes 1-30 minutes and obtains mixture；
Demoulding after step 3, mixture filling mold vibrate blanks and moulding and conserving 10-40 hours, is immediately placed in cement standard maintenance
Cage breeding is protected 10-60 hours, 60-120 DEG C is carried out after standard curing thermal curing 10-40 hours, last test specimen is put into still kettle
Middle 100-300 DEG C of steam press maintenance 10-40 hours, natural cooling is to get the superhigh intensity silicate arrived suitable for accurate measurement platform
Material.
Compared with prior art, the present invention its remarkable advantage are as follows: 1) the superhigh intensity silicate material of this method preparation, grain
The lesser silicon ash of diameter and levigate silica flour not only act as good filler effect, improve cement endoparticle particle diameter distribution, and two
Person has high activity volcano ash effect, and the low alkalinity hydrated calcium silicate for generating that intensity is high, stability is good can be reacted after conserving,
Significantly improve Mechanical Properties of Products；2) the superhigh intensity silicate material of this method preparation replaces normal concrete using haydite
In coarse aggregate, on the one hand avoid be added coarse aggregate when concrete in easily occur hole, crackle the defects of, on the other hand make pottery
The a large amount of existing small capillary holes in intragranular portion, in mixing process can effective " storage " moisture, and in hardening of cement
Moisture " can be discharged " again in journey, promotes the maintenance of product by this " Micropump " effect, to realize silicate material intensity
Raising；3) superhigh intensity silicate material of the present invention has good comprehensive performance and service performance, and compression strength reaches
320MPa-450MPa, bending strength reach 80-120MPa, and hardness reaches HB260-320, and good stability of the dimension is suitable for precision
The production of measuring table.
Detailed description of the invention
Fig. 1 is the process flow chart that the present invention prepares accurate measurement platform using superhigh intensity silicate material.
Specific embodiment
Such as Fig. 1, the method for the present invention using superhigh intensity silicate material preparation accurate measurement platform, including with
Lower step:
The selection of step 1, raw material: subtract by portland cement, silicon ash, levigate silica flour, haydite, steel fibre, high-performance
The weight ratio of aqua and water is 1:(0.01-0.4): (0.01-0.5): (0.01-0.5): (0.01-0.3): (0.01-0.1):
(0.01-0.5) chooses every material with spare；
Step 2, stirring: portland cement, silicon ash, levigate silica flour are poured into blender, dry mixing 1-10 minutes, add pottery
Grain is stirred for 1-10 minutes, and steel fibre, high-performance water reducing agent and water-wet is added and mixes 1-30 minutes and obtains mixture；
Demoulding after step 3, mixture filling mold vibrate blanks and moulding and conserving 10-40 hours, is immediately placed in cement standard maintenance
Cage breeding is protected 10-60 hours, 60-120 DEG C is carried out after standard curing thermal curing 10-40 hours, last test specimen is put into still kettle
Middle 100-300 DEG C of steam press maintenance 10-40 hours, natural cooling is to get the superhigh intensity silicate arrived suitable for accurate measurement platform
Material.
Above-mentioned superhigh intensity silicate material has good comprehensive performance and service performance, and compression strength reaches
320MPa-450MPa, bending strength reach 80-120MPa, and hardness reaches HB260-320, and good stability of the dimension is suitable for precision
The production of measuring table.
Embodiment
The preparation of haydite potting resin mineral composite is carried out as follows, specific formula is shown in Table 1, experimental result is shown in
Table 2.
1) it stirs: portland cement, silicon ash, levigate silica flour being poured into blender, dry mixing 4 minutes, add ceramic particle
It is stirred for 2 minutes, steel fibre, high-performance water reducing agent and water-wet is added and mixes 8 minutes and obtains mixture；
2) conserve: demoulding after mixture filling mold vibrates blanks and moulding and conserving 20 hours is immediately placed in cement standard curing box
Maintenance 50 hours carries out 90 DEG C thermal curing 30 hours after standard curing, last test specimen is put into 250 DEG C of steam pressures in still kettle and supports
Shield 30 hours, natural cooling is to get the superhigh intensity silicate material arrived suitable for accurate measurement platform.
The raw-material weight ratio of 1 superhigh intensity silicate of table
Silicon ash: specific surface area 26000m2/ kg, average grain diameter are 0.21 μm, SiO2Content is 94%；
Silica flour: specific surface area 406.6m2/ kg, 38.4 μm of average particle size, SiO2Content is 98%；
Haydite: average grain diameter 0.6mm；
Steel fibre: length 6mm, diameter 0.2mm, tensile strength 2000MPa；
Water-reducing agent: polycarboxylic acid series high efficiency water reducing agent；
The performance indexes of 2 superhigh intensity silicate material of table
Obtained embodiment superhigh intensity silicate material has good comprehensive performance and service performance, is suitable for essence
The production of close measuring table.
Claims (6)
1. a kind of accurate measurement platform, which is characterized in that it includes portland cement, silicon ash, levigate silica flour, haydite, steel fibre
Dimension, high-performance water reducing agent and water, the portland cement, silicon ash, levigate silica flour, haydite, steel fibre, high-performance water reducing agent and
The weight ratio of water is 1:(0.01-0.4): (0.01-0.5): (0.01-0.4): (0.01-0.20): (0.01-0.1): (0.01-
0.5), wherein haydite is ceramic particle of the partial size between 0.1-2mm.
2. accurate measurement platform as described in claim 1, which is characterized in that the specific surface area of silicon ash is 20000-28000
m2/ kg, average grain diameter are 0.1-0.3 μm, SiO290% or more content.
3. accurate measurement platform as described in claim 1, which is characterized in that the average particle size of levigate silica flour is 20-50 μ
M, SiO2Content is 95% or more.
4. accurate measurement platform as described in claim 1, which is characterized in that steel fibre is the straight steel fibre of copper coating,
The length is 6-13mm, diameter 0.2-0.5mm, tensile strength 2000MPa.
5. accurate measurement platform as described in claim 1, which is characterized in that high-performance water reducing agent is polycarboxylic acids high efficiency diminishing
Agent, water-reducing rate are not less than 30%.
6. a kind of preparation method of accurate measurement platform a method as claimed in any one of claims 1 to 5, which is characterized in that including following step
It is rapid:
Step 1, stirring: portland cement, silicon ash, levigate silica flour are poured into blender, dry mixing 1-10 minutes, adding ceramic was again
Stirring 1-10 minutes is added steel fibre, high-performance water reducing agent and water-wet and mixes 1-30 minutes and obtain mixture；
Demoulding after step 2, mixture filling mold vibrate blanks and moulding and conserving 10-40 hours, is immediately placed in cement standard maintenance cage breeding
Shield 10-60 hours carries out 60-120 DEG C thermal curing 10-40 hours after standard curing, last test specimen is put into still kettle
100-300 DEG C steam press maintenance 10-40 hours, natural cooling to get arrive the accurate measurement platform.
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