CN109574598A - A kind of preparation process of environment-friendlydurable durable construction material - Google Patents

A kind of preparation process of environment-friendlydurable durable construction material Download PDF

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Publication number
CN109574598A
CN109574598A CN201910083836.5A CN201910083836A CN109574598A CN 109574598 A CN109574598 A CN 109574598A CN 201910083836 A CN201910083836 A CN 201910083836A CN 109574598 A CN109574598 A CN 109574598A
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China
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parts
construction material
antifreezing
water
friendlydurable
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CN201910083836.5A
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CN109574598B (en
Inventor
李承坤
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Shanghai Huazhe New Material Technology Co.,Ltd.
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Shandong Cheng Kun Mdt Infotech Ltd
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039Premixtures of ingredients
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/76Use at unusual temperatures, e.g. sub-zero
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention discloses a kind of preparation processes of environment-friendlydurable durable construction material, the environment-friendlydurable durable construction material is made of the raw material of following parts by weight: 100 parts of portland cement, 30~40 parts of volcanic ash, 300~400 parts of sand grains, 5~10 parts of aggregate, 10~15 parts of antifreezing agent, 15~20 parts of xanthan gum, 2~4 parts of water-reducing agent, 30~50 parts of water;Its preparation process the following steps are included: S1, antifreezing agent preparation;S2, prepare raw material;The preparation of S3, construction material.The durable environmental protection of construction material proposed by the present invention, intensity is high, anti-permeability performance is good, binding force is strong, long service life, is easy to transport and construction, short construction period.

Description

A kind of preparation process of environment-friendlydurable durable construction material
Technical field
The present invention relates to building material technical field more particularly to a kind of preparation processes of environment-friendlydurable durable construction material.
Background technique
Construction material refers to the general designation for the cementing integral engineered composite material that gathers materials by cementitious material, and is engineering construction One of middle higher material of frequency of use.The construction material that we use at present mainly makees cementitious material with cement, be added sand, Masonry gathers materials, then plus a certain proportion of water stirring made of.The performance of construction material will directly affect the firmness of building, The especially anti-freezing property and anti-permeability performance of construction material, so the development of construction material is increasingly towards environment-friendlydurable durable mixing and coagulates Cubic metre of earth to progress.
CN201811243132 proposes graphite tailing concrete mix and its preparation process, is related to building material technology Field, in order to solve the problems, such as that graphite tailing pollution environment, building sand are deficient.Concrete mix by 346.15 parts of cement, 1284.1 parts of stones, 330.20~550.33 parts of sands, 59.97~239.88 parts of graphite tailings, 1~1.3 part of water-reducing agent and 180 Part water is made.Preparation process: Step 1: configuration raw material;Step 2: raw material is uniformly mixed, maintenance processing obtains graphite Tailing concrete mix.Concrete strength of the invention is high, and the present invention provides one kind for the processing of pollutant graphite tailing New processing mode, reduces environmental pollution, solves the problems, such as the scarcity of building sand amount.
CN201811187692 is related to a kind of superfine sand concrete.The fineness modulus of ultra fine sand is 1.5~0.7, average grain Diameter is 0.25mm or less.Superfine sand concrete needs to use plurality of raw materials, needs in existing superfine sand concrete preparation process Cement it is more so that the high expensive of product.The application provides a kind of superfine sand concrete, and the superfine sand concrete is by such as The raw material of lower parts by weight forms: cement 280~400, water 100~200, ultra fine sand 500~700, stone 1100~1200, fine coal Ash 100~120, high-efficiency water-reducing agent of poly-carboxylic acid 10~15, middle sand 0~150.Due to having used ultra fine sand, meeting strong concrete Under the premise of degree requires, reduces cement consumption to the greatest extent, while selecting other composition materials, reduce Cost of Concrete.
CN201811189874 discloses a kind of sprayable thermal insulation mortar of high water resistance, belongs to construction material and construction skill Art field;Solve the problems, such as that traditional mortar poor water resistance, intensity are low;Raw material including following parts by weight: desulfurized gypsum 70~200 Part;20~50 parts of glass bead;10~50 parts of cement;10~30 parts of flyash;5~20 parts of silicon ash;0.5~5 part of HPMC;It is poly- 0.1~1 part of tacryl;0.2~5 part of redispersible latex powder;1~10 part of styrene-acrylic emulsion;2~15 parts of polyvinyl alcohol;Lemon 0.01~1 part of lemon acid;150~350 parts of water;The present invention uses the solid waste such as desulfurized gypsum, flyash to keep the temperature as production The raw material of mortar meets national resources economizing type, environmentally friendly policy;Using retarder and polymer to thermal insulation mortar into Row is modified, and so that it had not only been met the requirement of spraying application, but also lead thermal property with high-intensitive, low.
CN201811296741 is related to a kind of high-efficiency compound environment-protection building thermal insulation material, belongs to construction timber field.It is a kind of High-efficiency compound environment-protection construction material, composed of the following components: rubber powder 5-10 parts, flyash 10-30 can be dispersed in 30-35 parts of cement Part, 10-30 parts of limestone, 10-30 parts of expanded perlite, 1-5 parts of aeroge, 5-10 parts of glass fibre, 1-2 parts of lubricant, hair 1-5 parts of infusion, 2-5 parts of organobentonite.It is poor that the introducing of aeroge can improve expanded perlite bring heat insulation effect very well The problems such as high with water absorption rate, improves the durability and reliability of thermal insulation material, and preparation process is easy, the thermal insulation material tool prepared There are good heat insulation effect and lower water absorption rate, there is great application prospect.
CN201811205705 discloses the cement-based material and its preparation process of a kind of Xi Fu ﹑ curing of chloride ion, belongs to Cement-based material durability field, raw material are as follows: 90-560 parts of portland cement, 10-30 parts of dispersing agent, graphite alkene nanometer material 2-6 parts, 30-280 parts of phosphorus slag powder, 20-250 parts of quick lime, 70-375 parts of mixing water of material.Method are as follows: using quick lime to phosphorus slag Powder is modified, and dispersing agent and graphite alkene nano material are placed in mixing water to dissolve to be made and disperse suspension;By graphite alkene suspension It is added mixed with being stirred in the portland cement of modified phosphorous slag powder, the graphite alkene cement slurry casting mold being stirred is vibrated compacting Molding;By demoulding after sample standard curing to specified time.The present invention has the ability of good Xi Fu ﹑ curing of chloride ion, energy Enough significantly improve the durability of armored concrete;The pressure of natural resources is effectively relieved in High-Efficiency Utilization of Phosphorus ground-slag simultaneously, reaches section It can emission reduction, construction material recycling, the purpose of pollution-free industry.
There is no the technical problems of the impermeability and frost resistance deficiency that sufficiently solve construction material in the prior art, based on existing There is deficiency existing for technology, the present invention proposes a kind of preparation process of environment-friendlydurable durable construction material.
Summary of the invention
The purpose of the present invention is to solve the impermeabilities and the insufficient skill of frost resistance that solve construction material in the prior art Art problem, and then a kind of preparation process of the environment-friendlydurable durable construction material proposed.
A kind of environment-friendlydurable durable construction material, the raw material including following parts by weight: 100 parts of portland cement, volcanic ash 30 ~40 parts, 300~400 parts of sand grains, 5~10 parts of aggregate, 10~15 parts of antifreezing agent, 15~20 parts of xanthan gum, 2~4 parts of water-reducing agent, 30~50 parts of water.
The antifreezing agent is made of antifreezing component A and sodium nitrite, wherein antifreezing component A and sodium nitrite in antifreezing agent Mass ratio be 1:3, the structural formula of antifreezing component A is as follows:
Preferably, the aggregate is the ball-shaped light-weight aggregate that partial size is less than 5mm.
Preferably, the mass ratio of the volcanic ash and xanthan gum is 2:1.
The present invention proposes a kind of preparation work of environment-friendlydurable durable construction material for above-mentioned environment-friendlydurable durable construction material Skill, comprising the following steps:
The preparation of S1, antifreezing agent: antifreezing component A and sodium nitrite are proportionally mixed, and carry out mechanical stirring to uniform, Obtain antifreezing agent;
S2, prepare raw material: according to 100 parts of portland cement, 30~40 parts of volcanic ash, 300~400 parts of sand grains, aggregate 5~ 10 parts, 10~15 parts of antifreezing agent, 15~20 parts of xanthan gum, 2~4 parts of water-reducing agent, 30~50 parts of water weigh each raw material, spare;
The preparation of S3, construction material: the weighed portland cement of step S1, aggregate, volcanic ash and water mechanical mixture obtain Mixture A, then water-reducing agent, antifreezing agent, xanthan gum are sequentially added to mixture A, it mixes to uniform up to mixture B, to mixing Sand grains is added in object B, continuess to mix to uniformly to get environment-friendlydurable durable construction material.
Compared with prior art, the invention has the benefit that
1, construction material proposed by the present invention, formula is reasonable, with the portland cement of rational proportion, volcanic ash, sand grains, bone Material, antifreezing agent, xanthan gum, water-reducing agent and water mix, the characteristic for having environmental protection durable, and impervious after construction material solidification It can good, long service life.
2, construction material formula in volcanic ash and xanthan gum rational proportion, can be enhanced in construction material between each raw material Bond strength, make preparation construction material solidification after structure it is closer, improve the anti-permeability performance of construction material so that The structure of building is more stable.
3, when antifreezing agent is made of antifreezing component A and sodium nitrite and antifreezing component A in antifreezing agent in construction material formula When with the mass ratio of sodium nitrite being 1:3, the anti-freezing property of construction material reaches optimum state, compared to only adding antifreezing component When the mass ratio of A or sodium nitrite or antifreezing component A and sodium nitrite are not 1:3, compression strength is damaged after 25 Frozen-thawed cycleds Mistake rate is substantially reduced.The above results illustrate that be most preferably configured to the antifreezing component A and the mass ratio of sodium nitrite of antifreezing agent are 1:3, The anti-freezing property of construction material reaches maximum value at this time, and the synergistic effect between antifreezing component A and sodium nitrite is embodied, built The service life for building material is also improved therewith.
Detailed description of the invention
Fig. 1 is the electron micrograph (SEM) of construction material sample of the present invention.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
Embodiment 1
A kind of environment-friendlydurable durable construction material proposed by the present invention, the raw material including following parts by weight: portland cement 100 Part, 30 parts of volcanic ash, 300 parts of sand grains, 5 parts of aggregate, 10 parts of antifreezing agent, 15 parts of xanthan gum, 2 parts of water-reducing agent, 30 parts of water;
The antifreezing agent is made of antifreezing component A and sodium nitrite, wherein antifreezing component A and sodium nitrite in antifreezing agent Mass ratio be 1:3, the structural formula of antifreezing component A is as follows:
The mass ratio of the volcanic ash and xanthan gum is 2:1.
Its preparation process, comprising the following steps:
The preparation of S1, antifreezing agent: antifreezing component A and sodium nitrite are proportionally mixed, and carry out mechanical stirring to uniform, Obtain antifreezing agent;
S2, prepare raw material: according to 100 parts of portland cement, 30 parts of volcanic ash, 300 parts of sand grains, 5 parts of aggregate, antifreezing agent 10 Part, 15 parts of xanthan gum, 2 parts of water-reducing agent, 30 parts of water weigh each raw material, spare;
The preparation of S3, construction material: the weighed portland cement of step S1, aggregate, volcanic ash and water mechanical mixture obtain Mixture A, then water-reducing agent, antifreezing agent, xanthan gum are sequentially added to mixture A, it mixes to uniform up to mixture B, to mixing Sand grains is added in object B, continuess to mix to uniformly to get environment-friendlydurable durable construction material.
Embodiment 2
A kind of environment-friendlydurable durable construction material proposed by the present invention, the raw material including following parts by weight: portland cement 100 Part, 36 parts of volcanic ash, 350 parts of sand grains, 8 parts of aggregate, 13 parts of antifreezing agent, 18 parts of xanthan gum, 3 parts of water-reducing agent, 40 parts of water;
The antifreezing agent is made of antifreezing component A and sodium nitrite, wherein antifreezing component A and sodium nitrite in antifreezing agent Mass ratio be 1:3, the structural formula of antifreezing component A is as follows:
The mass ratio of the volcanic ash and xanthan gum is 2:1.
Its preparation process, comprising the following steps:
The preparation of S1, antifreezing agent: antifreezing component A and sodium nitrite are proportionally mixed, and carry out mechanical stirring to uniform, Obtain antifreezing agent;
S2, prepare raw material: according to 100 parts of portland cement, 36 parts of volcanic ash, 350 parts of sand grains, 8 parts of aggregate, antifreezing agent 13 Part, 18 parts of xanthan gum, 3 parts of water-reducing agent, 40 parts of water weigh each raw material, spare;
The preparation of S3, construction material: the weighed portland cement of step S1, aggregate, volcanic ash and water mechanical mixture obtain Mixture A, then water-reducing agent, antifreezing agent, xanthan gum are sequentially added to mixture A, it mixes to uniform up to mixture B, to mixing Sand grains is added in object B, continuess to mix to uniformly to get environment-friendlydurable durable construction material.
Embodiment 3
A kind of environment-friendlydurable durable construction material proposed by the present invention, the raw material including following parts by weight: portland cement 100 Part, 40 parts of volcanic ash, 400 parts of sand grains, 10 parts of aggregate, 15 parts of antifreezing agent, 20 parts of xanthan gum, 4 parts of water-reducing agent, 50 parts of water;
The antifreezing agent is made of antifreezing component A and sodium nitrite, wherein antifreezing component A and sodium nitrite in antifreezing agent Mass ratio be 1:3, the structural formula of antifreezing component A is as follows:
The mass ratio of the volcanic ash and xanthan gum is 2:1.
Its preparation process, comprising the following steps:
The preparation of S1, antifreezing agent: antifreezing component A and sodium nitrite are proportionally mixed, and carry out mechanical stirring to uniform, Obtain antifreezing agent;
S2, prepare raw material: according to 100 parts of portland cement, 40 parts of volcanic ash, 400 parts of sand grains, 10 parts of aggregate, antifreezing agent 15 parts, 20 parts of xanthan gum, 4 parts of water-reducing agent, 50 parts of water weigh each raw material, spare;
The preparation of S3, construction material: the weighed portland cement of step S1, aggregate, volcanic ash and water mechanical mixture obtain Mixture A, then water-reducing agent, antifreezing agent, xanthan gum are sequentially added to mixture A, it mixes to uniform up to mixture B, to mixing Sand grains is added in object B, continuess to mix to uniformly that is, obtaining environment-friendlydurable durable construction material.
Comparative example 1
Antifreezing agent is only antifreezing component A in comparative example 1, and other conditions are the same as embodiment 1.
Comparative example 2
Antifreezing agent is only sodium nitrite in comparative example 2, and other conditions are the same as embodiment 1.
Comparative example 3
The mass ratio of antifreezing component A and sodium nitrite is 1:1 in antifreezing agent in comparative example 3, and other conditions are the same as embodiment 1.
Comparative example 4
The mass ratio of antifreezing component A and sodium nitrite is 1:2 in antifreezing agent in comparative example 4, and other conditions are the same as embodiment 1.
Comparative example 5
The mass ratio of antifreezing component A and sodium nitrite is 1:4 in antifreezing agent in comparative example 5, and other conditions are the same as embodiment 1.
Comparative example 6
15 parts and 15 parts of xanthan gum of volcanic ash are changed to by 30 parts and 15 parts of xanthan gum of volcanic ash in embodiment 1, other conditions With embodiment 1.
Comparative example 7
15 parts and 30 parts of xanthan gum of volcanic ash are changed to by 30 parts and 15 parts of xanthan gum of volcanic ash in embodiment 1, other conditions With embodiment 1.
In above-described embodiment and comparative example, aggregate is the ball-shaped light-weight aggregate that partial size is less than 5mm.
Anti-freezing property detection:
Anti-freezing property is detected using the freezing-thawing test of unified standard, and is damaged using compression strength after 25 Frozen-thawed cycleds Mistake rate characterizes the frost resistance of embodiment 1-3 and comparative example 1-5, as a result as follows:
Anti-permeability performance detection:
Anti-freezing property is detected using the freezing-thawing test of unified standard, is built to embodiment 1-3 and comparative example 6-7 preparation It builds material and commercially available construction material is tested for the property respectively, and is (i.e. impervious with the test result of commercially available construction material Property be P6) be criterion embodiment and comparative example each group construction material performance, it is as a result as follows:
In table, "+" indicates the percentages that the test result relevant parameter compared to commercially available construction material improves, "-" indicates the percentages that the test result relevant parameter compared to commercially available construction material reduces.
By the experimental result of embodiment 1-3 and comparative example 1-7 it can be seen that
(1) when the mass ratio of volcanic ash and xanthan gum is 2:1 (embodiment 1-3), the impermeability of construction material is compared It significantly improves in commercially available construction material is available.And (the i.e. comparative example 6- when the mass ratio of volcanic ash and xanthan gum is not 2:1 7), the impermeability of construction material small can only be improved compared to commercially available construction material.The above results illustrate volcanic ash and Huang When the optimum quality ratio of virgin rubber is 2:1, the anti-permeability performance of construction material reaches maximum value at this time, between volcanic ash and xanthan gum Synergistic effect is embodied, and the service life of construction material is also improved therewith.
(2) when antifreezing agent is made of antifreezing component A and sodium nitrite and in antifreezing agent antifreezing component A and sodium nitrite matter For amount than being 1:3 (i.e. embodiment 1-3), the anti-freezing property of construction material reaches optimum state, compared to only add antifreezing component A or When the mass ratio of sodium nitrite or antifreezing component A and sodium nitrite are not 1:3, compression strength loss after 25 Frozen-thawed cycleds Rate is substantially reduced.The above results illustrate that be most preferably configured to the antifreezing component A and the mass ratio of sodium nitrite of antifreezing agent are 1:3, this When construction material anti-freezing property reach maximum value, the synergistic effect between antifreezing component A and sodium nitrite is embodied, building The service life of material is also improved therewith.
(3) in general from the result of embodiment 1-3, the anti-freezing property of construction material of the present invention and impermeability are compared to city It sells construction material to be greatly improved, successfully solves commercially available construction material anti-freezing property and impermeability is difficult to meet harshness makes The problem of with environment, improves the service life of construction material, but also the application range of construction material is improved,
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (3)

1. a kind of preparation process of environment-friendlydurable durable construction material, which is characterized in that the construction material is by following parts by weight Raw material composition: 100 parts of portland cement, 30~40 parts of volcanic ash, 300~400 parts of sand grains, 5~10 parts of aggregate, antifreezing agent 10~ 15 parts, 15~20 parts of xanthan gum, 2~4 parts of water-reducing agent, 30~50 parts of water;The antifreezing agent is by antifreezing component A and sodium nitrite structure At, wherein the mass ratio of antifreezing component A and sodium nitrite is 1:3 in antifreezing agent, and the structural formula of antifreezing component A is as follows:
The preparation process the following steps are included:
The preparation of S1, antifreezing agent: antifreezing component A and sodium nitrite are proportionally mixed, and are carried out mechanical stirring to uniform, are obtained anti- Freeze agent;
S2, prepare raw material: according to 100 parts of portland cement, 30~40 parts of volcanic ash, 300~400 parts of sand grains, aggregate 5~10 Part, 10~15 parts of antifreezing agent, 15~20 parts of xanthan gum, 2~4 parts of water-reducing agent, 30~50 parts of water weigh each raw material, spare;
The preparation of S3, construction material: the weighed portland cement of step S1, aggregate, volcanic ash and water mechanical mixture must mix Object A, then water-reducing agent, antifreezing agent, xanthan gum are sequentially added to mixture A, it mixes to uniform up to mixture B, into mixture B Sand grains is added, continuess to mix to uniformly to get environment-friendlydurable durable construction material.
2. a kind of preparation process of environment-friendlydurable durable construction material according to claim 1, which is characterized in that the aggregate It is less than the ball-shaped light-weight aggregate of 5mm for partial size.
3. a kind of preparation process of environment-friendlydurable durable construction material according to claim 1, which is characterized in that the volcano The mass ratio of ash and xanthan gum is 2:1.
CN201910083836.5A 2019-01-29 2019-01-29 Preparation process of environment-friendly durable building material Active CN109574598B (en)

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Cited By (1)

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CN112374816A (en) * 2020-09-16 2021-02-19 湖州上建华煜混凝土有限公司 Light heat-insulating concrete and preparation method thereof

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CN108503279A (en) * 2017-02-28 2018-09-07 北京城泰混凝土制品有限公司 Frost-resistant concrete and preparation method thereof
CN108863232A (en) * 2018-07-27 2018-11-23 中交天津航道局有限公司 A kind of winter construction match ratio improving concrete antifreezing performance

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Publication number Priority date Publication date Assignee Title
KR100926453B1 (en) * 2009-07-14 2009-11-13 김동균 Light weight adhesive mortar composition for outer wall insulation using elastic hollow filler
CN102701679A (en) * 2012-06-13 2012-10-03 江苏建华新型墙材有限公司 Antifreeze ready mixed mortar and preparation method thereof
KR20170003759A (en) * 2015-06-30 2017-01-10 주식회사 케미콘 Cold resistance substance composition of exothermal concrete
CN105000851A (en) * 2015-07-13 2015-10-28 中国三冶集团有限公司 Anti-freezing concrete preparation method by using mine tailings as aggregate
CN108503279A (en) * 2017-02-28 2018-09-07 北京城泰混凝土制品有限公司 Frost-resistant concrete and preparation method thereof
CN108863232A (en) * 2018-07-27 2018-11-23 中交天津航道局有限公司 A kind of winter construction match ratio improving concrete antifreezing performance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112374816A (en) * 2020-09-16 2021-02-19 湖州上建华煜混凝土有限公司 Light heat-insulating concrete and preparation method thereof
CN112374816B (en) * 2020-09-16 2022-07-12 湖州上建华煜混凝土有限公司 Light heat-insulating concrete and preparation method thereof

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