(1)石膏

(1) Gypsum

根据所用原料分为Ⅱ型无水石膏和α-半水石膏两种。它们所用材料分别为：

According to the raw materials used, it is divided into type II anhydrous gypsum and α- There are two types of semi hydrated gypsum. The materials used are:

①Ⅱ型无水石膏

① Type II anhydrous gypsum

济南石膏粉厂家提醒您应选用品位高、质地松软的透明石膏或雪花石膏，煅烧温度在650～800℃之间，在激发剂作用下进行水化。

Jinan gypsum powder manufacturer reminds you to choose high-quality and soft transparent gypsum or alabaster gypsum, with a calcination temperature between 650~800 ℃, and hydration under the action of an activator.

②-半水石膏

② - Semi hydrated gypsum

一半水石膏生产技术主要有以脱水烘干一体化为主的干法转化工艺和湿法转化工艺。适宜配制自流平石膏的α-半水石膏性能如表。

The production technology of half water gypsum mainly includes dry conversion process and wet conversion process, which mainly integrate dehydration and drying. Suitable for preparing self-leveling gypsum α- The performance of hemihydrate gypsum is shown in the table.

(2)水泥

(2) Cement

在配制自流平石膏时，可掺入少量水泥，所用水泥为42.5R硅酸盐水泥。若制备彩色自流平石膏时，可选用白色硅酸盐水泥。水泥掺入量不允许超过15％。

When preparing self leveling gypsum, a small amount of cement can be added, and the cement used is 42.5R Portland cement. When preparing colored self leveling gypsum, white Portland cement can be used. The amount of cement added shall not exceed 15%.

(3)凝结时间调节剂

(3) Setting time regulator

在自流平石膏砂浆中若使用Ⅱ型无水石膏应采用促凝剂，若使用-半水石膏则一般采用缓凝剂。

If type II anhydrous gypsum is used in self leveling gypsum mortar, a setting accelerator should be used, and if - hemihydrate gypsum is used, a setting retarder is generally used.

(4)减水剂

(4) Water reducing agent

须引入石膏减水剂，以加大石膏浆体的流动性。适用于配制自流平石膏的减水剂有萘系减水剂、聚羧酸减水剂系列等。

It is necessary to introduce gypsum water reducing agent to increase the fluidity of gypsum slurry. The water reducing agents suitable for preparing self leveling gypsum include naphthalene series water reducing agents, polycarboxylic acid high-efficiency water reducing agent series, etc.

(5)保水剂

(5) Water retaining agent

自流平石膏料浆自行流平时，由于基底吸水，导致料浆流动度降低。欲获得理想的自流平石膏料浆，除本身的流动性要满足要求外，料浆还必须具有较好的保水性。

The self leveling gypsum slurry flows on its own, but due to the base absorbing water, the fluidity of the slurry decreases. In order to obtain an ideal self leveling gypsum slurry, in addition to meeting the requirements of its own fluidity, the slurry must also have good water retention.

(6)聚合物

(6) Polymer

使用可再分散的粉状聚合物以提高自流平材料的耐磨性、抗裂性与耐水性

Use redispersible powder polymers to improve the wear resistance, crack resistance, and water resistance of self-leveling materials

(7)消泡剂

(7) Defoamer

消除材料混拌过程产生的气泡，一般采用磷酸三丁酯。

To eliminate bubbles generated during the mixing process of materials, tributyl phosphate is generally used.

(8)填料

(8) Filler

为避免自流平材料组分离析而用，以便有较好的流动性。可以使用的填料，如白云石、碳酸钙、磨细粉煤灰、磨细的水淬矿渣、细砂等。

Used to avoid component segregation in self-leveling materials, in order to have good fluidity. Fillers that can be used, such as dolomite, calcium carbonate, ground fly ash, ground water quenched slag, fine sand, etc.

(9)细集料

(9) Fine aggregate

掺入细集料的目的是减少自流平石膏硬化体的干燥收缩，增加硬化体表面强度和耐磨性能，一般采用石英砂。

The purpose of adding fine aggregate is to reduce the drying shrinkage of self leveling gypsum hardened body and increase the surface strength and wear resistance of hardened body. Generally, quartz sand is used.

石膏自流平砂浆的材料要求有哪些？

What are the material requirements for gypsum self-leveling mortar?

纯度达90％以上一级品位二水石膏煅烧制得的β型半水石膏或用蒸压法或水热合成法制得的α型半水石膏。

Made by calcining first grade dihydrate gypsum with a purity of over 90% β Type semi hydrated gypsum or obtained by steam pressing or hydrothermal synthesis method α Type semi hydrated gypsum.

活性掺合料：自流平材料可以用粉煤灰、矿渣粉等作为活性掺合料，目的在于改善材料的颗粒级配，提高材料硬化体的性能。矿渣粉在碱性环境下发生水化反应，可提高材料结构的密实性和后期强度。

Active admixtures: Self leveling materials can use fly ash, slag powder, etc. as active admixtures, with the aim of improving the particle grading of the material and improving the performance of the hardened material. The hydration reaction of slag powder in alkaline environment can improve the compactness and later strength of the material structure.

早强型胶凝材料：为了保证施工时间，自流平材料对早期强度(主要是24h抗折和抗压强度)有一定的要求。采用硫铝酸盐水泥作为早强型胶凝材料，硫铝酸盐水泥水化速度快，早期强度高，可满足材料早期强度的要求。

Early strength cementitious materials: In order to ensure construction time, self leveling materials have certain requirements for early strength (mainly 24-hour bending and compressive strength). Sulphur aluminate cement is used as early strength cementing material. Sulphur aluminate cement has fast hydration speed and high early strength, which can meet the requirements of early strength of materials.

碱性激发剂：石膏复合胶凝材料在中偏碱性的条件下绝干强度高，可用生石灰和32.5水泥调节pH值，为胶凝材料的水化提供碱性环境。

Alkaline activator: Gypsum composite cementitious materials have high absolute dry strength under medium to alkaline conditions, and can be adjusted with quicklime and 32.5 cement to provide an alkaline environment for the hydration of cementitious materials.

促凝剂：凝结时间是自流平材料一项重要的性能指标，时间过短或过长都不利于施工。促凝剂激发了石膏的活性，加快了二水石膏的过饱和析晶速度，缩短了凝结时间，使自流平材料的凝结硬化时间保持在一个合理的范围。

Accelerator: Setting time is an important performance indicator of self-leveling materials, and too short or too long is not conducive to construction. The coagulant stimulates the activity of gypsum, accelerates the supersaturated crystallization rate of dihydrate gypsum, shortens the setting time, and keeps the setting and hardening time of the self-leveling material within a reasonable range.

石膏基自流平砂浆中各种材料的作用及要求相关事项就讲解到这里了，您对此有怎样的疑惑或者需求可以随时来我们网站//www.gochiism.com咨询！

That's all for explaining the functions and requirements of various materials in gypsum based self-leveling mortar. If you have any doubts or needs, please feel free to come to our website at any time //www.gochiism.com consulting service