CN106830862A - A kind of lime base raw-soil texture ornament materials and preparation method thereof - Google Patents

Abstract

The present invention relates to a kind of lime base raw-soil texture ornament materials and preparation method thereof.The weight fraction of each component is as follows：White lime is 25~40 parts, Desulphurization is 10~20 parts, vinyl redispersable latex powder is 0.4~1.2 part, HEMC is 0.03~0.15 part, organosilicon moisture repellent is 0.1~0.3 part, raw-soil binding agent is 0.5~1.0 part, and fiber is 0.05~0.2 part, and gross weight number is 100 parts.The construction wall compatibility of lime base raw-soil texture ornament materials of the present invention and various base materials, matching are good, and there is good workability, adhesive property, gas permeability and water proofing property, construction wall can be made to possess the decoration texture similar with traditional earth building wall, can apply to the wall facing decoration engineering of various base materials, and largely utilize industrial solid castoff, financial cost is relatively low, with good environmental protection and energy-conserving profit waste effect.

Description

A kind of lime-based raw soil texture decorative material and preparation method thereof

technical field

The invention belongs to the technical field of building materials, and in particular relates to a lime-based earth-feeling decorative material and a preparation method thereof.

Background technique

There are a large number of historical buildings in my country built with raw soil, and their appearance has the unique, natural, and simple characteristics of raw soil walls. However, during the restoration and protection of these historical buildings, it was found that a large number of other building materials were used in the area where the historical buildings were located. Buildings made of brick, stone, concrete, etc., the interior and exterior walls are mostly decorated with modern decorative materials such as paint and ceramic tiles. The appearance is extremely inconsistent with traditional historical buildings, which seriously damages the overall style of historical buildings. In order to make the modern buildings around the historical buildings have the same internal and external appearance as the traditional earthen buildings, and maintain the harmony of the historical building blocks, it is necessary to design a building wall with good compatibility and bonding with various base materials. It is a decorative material with excellent durability and the appearance of raw earth wall, so as to meet the requirements of interior and exterior decoration of different wall substrates.

Contents of the invention

Through scientific research and practical testing, the present invention comprehensively utilizes the activation effect of circulating fluidized bed boiler desulfurization ash and lime, the appearance decoration effect of raw soil, the bonding strength of polymer additives and the reinforcement effect of raw soil binder, and Through the research on the preparation process, a single-component lime-based raw soil texture decorative material that meets the needs of building wall decoration projects with different base materials and has the appearance of traditional raw soil buildings has been successfully prepared, and a large number of industrial solid wastes are also comprehensively utilized. It has significant economic, social and environmental benefits.

In view of the deficiencies in the prior art, the purpose of the present invention is to prepare a lime-based raw soil texture decorative material with excellent and stable physical and mechanical properties, good wall decoration effect and bonding performance through the optimization of the mix ratio and the research of the preparation method and preparation method, and a large amount of comprehensive utilization of industrial solid waste, saving resources and energy, and protecting the environment.

In order to solve the above-mentioned technical problems, the application adopts the following technical solutions to achieve:

A lime-based raw soil texture decorative material, which is composed of the following raw materials: raw soil, slaked lime, desulfurized ash, vinyl redispersible latex powder, hydroxyethyl methylcellulose, silicone water repellent, raw soil binder and fiber.

In terms of weight unit, it is composed of the following raw materials: 45-65 parts of raw soil, 25-40 parts of slaked lime, 10-20 parts of desulfurized ash, 0.4-1.2 parts of vinyl redispersible latex powder, hydroxyethyl methyl 0.03-0.15 parts of cellulose base, 0.1-0.3 parts of organosilicon water repellent, 0.5-1.0 parts of raw soil binder, 0.05-0.2 parts of fiber, and the total parts by weight are 100 parts.

Specifically, the raw soil is raw soil powder with a sieve mesh number below 100 mesh.

Preferably, the desulfurization ash is a circulating fluidized bed boiler desulfurization ash.

Specifically, the viscosity of the hydroxyethyl methylcellulose is 10000-45000 mPa·s.

Specifically, the fibers are wood fibers with a diameter of 0.5-3 mm.

Specifically, the raw soil binder is sodium water glass with a modulus of 3.3 and a molecular formula of Na ₂ O·nSiO ₂ .

Preferably, in units of weight, the following raw materials are composed: 38 parts of slaked lime, 12 parts of desulfurized ash, 1.0 part of vinyl redispersible latex powder, 0.08 part of hydroxyethyl methylcellulose, and silicone hydrophobic Agent is 0.3 part, raw soil binder is 0.8 part, fiber is 0.1 part, raw soil is 47.72 parts, and its total parts by weight is 100 parts.

The preparation method of described lime-based raw soil texture decoration material:

Based on the raw material formula of the lime-based raw soil texture decorative material,

The method includes the following process: First, add vinyl redispersible latex powder, hydroxyethyl methylcellulose, organic silicon water repellent, raw soil binder and fiber into the high-speed mixer, at 500 ~ 1000r/min Then, adjust the mixing speed of the high-speed mixer to 80-250r/min, add slaked lime, desulfurized ash and raw soil, and mix evenly to obtain a lime-based raw soil texture decoration material.

The finished lime-based soil-textured decorative material of the present invention is a single-component powder material, which can be used only by stirring it with water at a given ratio for 3-4 minutes at the construction site during construction.

The test results of the lime-based raw soil texture decorative material proposed by the present invention are shown in Table 1.

Table 1 Basic properties of lime-based raw soil texture decorative materials

It can be seen from Table 1 that the lime-based raw soil texture decorative material proposed by the present invention has good physical and mechanical properties, can meet or exceed the requirements of relevant standards, has good water resistance and bonding strength, and excellent exterior wall decoration Effect.

Compared with the prior art, the present invention has beneficial technical effects as follows:

The lime-based raw soil texture decorative material proposed by the present invention adopts raw soil as filler and pigment, uses slaked lime as the main gelling material, and simultaneously adds circulating fluidized bed boiler desulfurization ash as a hydraulic additive to improve the strength and water resistance of the slaked lime material, etc. , On the one hand, it can reduce the high energy consumption caused by the use of cement, and on the other hand, it can also promote the resource utilization of solid waste.

The lime-based raw soil texture decorative material proposed by the invention has a wide range of applications, and is suitable for various plastering projects of interior and exterior walls of buildings, especially various plastering projects that need to be consistent with the decorative effect of raw soil walls. The invention has excellent construction performance, long operating time, low water absorption, high compressive strength, good knot performance, good decorative effect, and particularly outstanding weather resistance and long-term performance.

The lime-based raw soil texture decorative material proposed by the present invention has excellent performance indicators, simple and easy preparation method, easy control of product quality, excellent construction performance, outstanding decorative effect, superior long-term performance and good durability, and is suitable for various building exterior walls The plastering project is convenient for large-scale promotion and application.

detailed description

The present invention is further illustrated below by way of examples.

Embodiment 1: A kind of lime-based raw soil texture decoration material, its component and proportioning ratio (mass percentage): 38 parts of slaked lime, 12 parts of desulfurized ash, 1.0 parts of vinyl redispersible latex powder, hydroxyethyl 0.08 parts of methyl cellulose, 0.3 parts of silicone water repellent, 0.8 parts of raw soil binder, 0.1 part of fiber, 47.72 parts of raw soil, and the total parts by weight are 100 parts.

The performance results obtained by the detection test are shown in Table 2.

The performance test result of the lime-based raw soil texture decorative material of Table 2 Example 1

project Measured performance Operational time 180min Initial drying crack resistance no crack 30min water absorption/g 0.8 240min water absorption/g 1.5 Flexural strength/MPa 5.6 Compressive strength/MPa 8.5 Tensile bond strength/MPa 1.5 Anti-pantothenic No visible efflorescence, no powder shedding Stain resistance 1 weather resistance No change in appearance after 28 times of rain erosion

Embodiment 2: A kind of lime-based raw soil texture decoration material, its component and proportioning ratio (mass percentage): 25 parts of slaked lime, 18 parts of desulfurized ash, 0.8 part of vinyl redispersible latex powder, hydroxyethyl 0.06 parts of methyl cellulose, 0.25 parts of water repellent, 0.6 parts of raw soil binder, 0.15 parts of fiber, 55.14 parts of raw soil, and the total parts by weight are 100 parts.

The performance results obtained by the detection test are shown in Table 3.

The performance test results of the lime-based raw soil texture decorative material of Table 3 Example 2

Embodiment 3: A kind of lime-based raw soil texture decoration material, its component and proportioning ratio (mass percentage): 35 parts of slaked lime, 20 parts of desulfurized ash, 1.0 parts of vinyl redispersible latex powder, hydroxyethyl 0.12 parts of methyl cellulose, 0.3 parts of water repellent, 1.0 part of raw soil binder, 0.15 parts of fiber, 42.43 parts of raw soil, and the total parts by weight are 100 parts.

The performance results obtained by the detection test are shown in Table 4.

The performance test results of the lime-based raw soil texture decorative material of Table 4 Example 3

project Measured performance Operational time 130min Initial drying crack resistance no crack 30min water absorption/g 0.8 240min water absorption/g 1.3 Flexural strength/MPa 5.0 Compressive strength/MPa 9.5 Tensile bond strength/MPa 1.8 Anti-pantothenic No visible efflorescence, no powder shedding Stain resistance 1 weather resistance No change in appearance after 28 times of rain erosion

It can be seen from the above examples that the lime-based raw soil texture decorative material proposed by the present invention can be formulated into corresponding products according to the requirements of construction projects. All performance indicators meet or exceed relevant standards and engineering requirements, and can be used as building exterior wall decoration engineering materials to achieve good decorative effects, and can be widely used in various building exterior wall plastering projects.

Claims (8)

1. a kind of lime base raw-soil texture ornament materials, it is characterised in that：It is made up of following raw material：The raw-soil, white lime, desulfurization Ash, vinyl redispersable latex powder, HEMC, organosilicon moisture repellent, raw-soil binding agent and fiber.

2. lime base raw-soil texture ornament materials as claimed in claim 1, it is characterised in that：With weight basis, by following Raw material is constituted：The raw-soil is 45~65 parts, and white lime is 25~40 parts, and Desulphurization is 10~20 parts, vinyl Redispersable latex Powder is 0.4~1.2 part, and HEMC is 0.03~0.15 part, and organosilicon moisture repellent is 0.1~0.3 part, and the raw-soil glues Knot agent is 0.5~1.0 part, and fiber is 0.05~0.2 part, and the parts by weight sum of raw material is 100 parts.

3. lime base raw-soil texture ornament materials as claimed in claim 1, it is characterised in that：The raw-soil was that grit number exists Raw-soil powder below 100 mesh.

4. lime base raw-soil texture ornament materials as claimed in claim 1, it is characterised in that：The Desulphurization is ciculation fluidized Bed boiler desulfurization ash.

5. lime base raw-soil texture ornament materials as claimed in claim 1, it is characterised in that：The HEMC Viscosity is 10000~45000mPas.

6. lime base raw-soil texture ornament materials as claimed in claim 1, it is characterised in that：The fibre diameter be 0.5~ The wood fibre of 3mm.

7. lime base raw-soil texture ornament materials as claimed in claim 1, it is characterised in that：The raw-soil binding agent is modulus 3.3 sodium silicate, molecular formula is Na₂O·nSiO₂。

8. a kind of preparation method of lime base raw-soil texture ornament materials, it is characterised in that：The method using as claim 1 to The formula of the lime base raw-soil texture ornament materials described in 7 any claims；

The method includes procedure below：First, to addition vinyl redispersable latex powder, hydroxyethyl methyl in high-speed mixer Cellulose, organosilicon moisture repellent, raw-soil binding agent and fiber, are well mixed, so under the mixing rate of 500~1000r/min Afterwards, the mixing rate of the mixing of regulation high-speed mixer is 80~250r/min, adds white lime, Desulphurization and the raw-soil, mixing Uniformly, that is, lime base raw-soil texture ornament materials is obtained.