(1)石膏

(1) Gypsum

根據(jù)所用原料分為Ⅱ型無(wú)水石膏和α-半水石膏兩種。它們所用材料分別為：

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型無(wú)水石膏

① Type II anhydrous gypsum

濟(jì)南石膏粉廠家提醒您應(yīng)選用品位高、質(zhì)地松軟的透明石膏或雪花石膏，煅燒溫度在650～800℃之間，在激發(fā)劑作用下進(jìn)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

一半水石膏生產(chǎn)技術(shù)主要有以脫水烘干一體化為主的干法轉(zhuǎn)化工藝和濕法轉(zhuǎn)化工藝。適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

在配制自流平石膏時(shí)，可摻入少量水泥，所用水泥為42.5R硅酸鹽水泥。若制備彩色自流平石膏時(shí)，可選用白色硅酸鹽水泥。水泥摻入量不允許超過(guò)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)凝結(jié)時(shí)間調(diào)節(jié)劑

(3) Setting time regulator

在自流平石膏砂漿中若使用Ⅱ型無(wú)水石膏應(yīng)采用促凝劑，若使用-半水石膏則一般采用緩凝劑。

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)減水劑

(4) Water reducing agent

須引入石膏減水劑，以加大石膏漿體的流動(dòng)性。適用于配制自流平石膏的減水劑有萘系減水劑、聚羧酸減水劑系列等。

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)保水劑

(5) Water retaining agent

自流平石膏料漿自行流平時(shí)，由于基底吸水，導(dǎo)致料漿流動(dòng)度降低。欲獲得理想的自流平石膏料漿，除本身的流動(dòng)性要滿(mǎn)足要求外，料漿還必須具有較好的保水性。

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

使用可再分散的粉狀聚合物以提高自流平材料的耐磨性、抗裂性與耐水性

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

(7)消泡劑

(7) Defoamer

消除材料混拌過(guò)程產(chǎn)生的氣泡，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

為避免自流平材料組分離析而用，以便有較好的流動(dòng)性。可以使用的填料，如白云石、碳酸鈣、磨細(xì)粉煤灰、磨細(xì)的水淬礦渣、細(xì)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)細(xì)集料

(9) Fine aggregate

摻入細(xì)集料的目的是減少自流平石膏硬化體的干燥收縮，增加硬化體表面強(qiáng)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.

石膏自流平砂漿的材料要求有哪些？

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

純度達(dá)90％以上一級(jí)品位二水石膏煅燒制得的β型半水石膏或用蒸壓法或水熱合成法制得的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.

活性摻合料：自流平材料可以用粉煤灰、礦渣粉等作為活性摻合料，目的在于改善材料的顆粒級(jí)配，提高材料硬化體的性能。礦渣粉在堿性環(huán)境下發(fā)生水化反應(yīng)，可提高材料結(jié)構(gòu)的密實(shí)性和后期強(qiáng)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.

早強(qiáng)型膠凝材料：為了保證施工時(shí)間，自流平材料對(duì)早期強(qiáng)度(主要是24h抗折和抗壓強(qiáng)度)有一定的要求。采用硫鋁酸鹽水泥作為早強(qiáng)型膠凝材料，硫鋁酸鹽水泥水化速度快，早期強(qiáng)度高，可滿(mǎn)足材料早期強(qiáng)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.

堿性激發(fā)劑：石膏復(fù)合膠凝材料在中偏堿性的條件下絕干強(qiáng)度高，可用生石灰和32.5水泥調(diào)節(jié)pH值，為膠凝材料的水化提供堿性環(huán)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.

促凝劑：凝結(jié)時(shí)間是自流平材料一項(xiàng)重要的性能指標(biāo)，時(shí)間過(guò)短或過(guò)長(zhǎng)都不利于施工。促凝劑激發(fā)了石膏的活性，加快了二水石膏的過(guò)飽和析晶速度，縮短了凝結(jié)時(shí)間，使自流平材料的凝結(jié)硬化時(shí)間保持在一個(gè)合理的范圍。

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.

石膏基自流平砂漿中各種材料的作用及要求相關(guān)事項(xiàng)就講解到這里了，您對(duì)此有怎樣的疑惑或者需求可以隨時(shí)來(lái)我們網(wǎng)站http://www.netjobs.cc咨詢(xún)！

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