GRC在建筑行業(yè)中已得到越來越廣泛的應(yīng)用，那到底它是如何制成的呢？
GRC has been more and more widely used in the construction industry, so how is it made?
GRC是由波蘭特水泥砂漿與抗堿玻纖組成的一種復(fù)合材料，其中還含有摻和料與外加劑。它的組成成分通常有：水泥、纖維、聚合物、外加劑和其他材料?？煊擦蜾X酸鹽水泥、低堿度硫鋁酸鹽水泥、普通硅酸鹽水泥、白色硅酸鹽水泥都是常用的水泥品種。GRC材料中使用的纖維是耐堿玻璃纖維。
GRC is a kind of composite material composed of Polish cement mortar and alkali resistant glass fiber, which also contains admixture and admixture. It is usually composed of cement, fiber, polymer, admixture and other materials. Fast hardening sulphoaluminate cement, low alkalinity sulphoaluminate cement, ordinary portland cement and white portland cement are all commonly used cement varieties. The fibers used in GRC materials are alkali resistant glass fibers.
GRC主要用兩種方法來制作：①噴射法：用手工或機械方法使纖維與料漿同時噴射到模具上，可以用來制作農(nóng)業(yè)用構(gòu)件、筒體、幕墻板、通風(fēng)道與模板等。②預(yù)拌法：使纖維與料漿預(yù)拌后，再澆注于模具上，通常均使之振動?？梢杂脕碇谱鲹蹶柊濉⒎N植盆、變電房、接線箱以及排水構(gòu)件等。
GRC is mainly produced by two methods: ① spraying method: manually or mechanically spraying fiber and slurry to the mold at the same time, which can be used to make agricultural components, cylinder, curtain wall plate, ventilation channel and formwork, etc. ② Premixing method: after the fiber and slurry are premixed and then poured on the mold, they are usually vibrated. It can be used to make sun blocking plate, planting basin, substation, junction box and drainage components.
采用噴射法制作GRC時，水泥砂漿與切短了的AR-玻纖同時由噴射頭中噴合適的模具上。水泥砂漿由可調(diào)節(jié)的泵喂入噴射槍中并由壓縮空氣使之分散成為微粒狀。AR-玻纖無捻粗紗喂入裝于噴射頭的切割預(yù)定的長度，使切短的原紗噴入分散的砂漿中，從而在模具上可形成均質(zhì)的纖維砂漿料層。
When the GRC is made by spraying method, the cement mortar and the chopped ar glass fiber are sprayed to the appropriate mold from the spraying head at the same time. The cement mortar is fed into the spray gun by an adjustable pump and dispersed into particles by compressed air. Ar - glass fiber roving is fed into the cutting of the spray head to a predetermined length, so that the cut short raw yarn is sprayed into the dispersed mortar, so that a uniform fiber sand slurry layer can be formed on the mold.
噴射法也分為幾種。使用手工噴射法，是由操作人員直接將料流噴射于模具表面上，直達(dá)到一定的厚度。通過壓輥使料層與模具的形狀完全一致，水泥砂漿滲進(jìn)纖維中，排除空氣并使料層達(dá)到要求的密實度。而機械噴射法主要用于生產(chǎn)平直的或外形較淺的制品。模具在輥道或水平皮帶上前進(jìn)過程，經(jīng)由一位于其上的裝有噴射頭的一橫向移動的系統(tǒng)?？蓪⒗w維水泥砂漿混合料噴射模具上。還有噴射-脫水法，可以先用機械噴射法制成連續(xù)的GRC料層，然后使之脫水形成具有一定塑性的板坯。
The jet method is also divided into several types. Using the manual spraying method, the operator directly sprays the material flow on the surface of the mold until it reaches a certain thickness. By pressing the roller, the shape of the material layer and the mold is completely consistent, the cement mortar infiltrates into the fiber, exhausts the air and makes the material layer reach the required compactness. The mechanical spraying method is mainly used to produce flat or shallow products. The die moves forward on the roller table or horizontal belt through a lateral moving system equipped with a jet head. The fiber cement mortar mixture can be sprayed onto the mold. There is also jet dehydration method, which can be used to form a continuous GRC layer by mechanical jet method, and then dehydrate it to form a plastic slab.
預(yù)拌法是使水泥、砂、水、外加劑于短切的AR-纖維原砂在一攪拌機內(nèi)混合后，再進(jìn)行成型。要制成高質(zhì)量的料漿，不僅具有必要的工作性，同時還可使纖維均勻分散其中；其次將纖維混入料漿中。根據(jù)成型方法的不同，預(yù)混工藝可分為預(yù)混澆筑工藝和預(yù)混噴射工藝。預(yù)混澆筑工藝與預(yù)制混凝土制品的工藝相類似，在澆筑過程中常常會輔以震動工序。
The premixing method is to mix the cement, sand, water and admixture in the short cut ar fiber raw sand in a mixer, and then form. First of all, it is necessary to make high-quality slurry, which not only has the necessary workability, but also can make the fiber disperse evenly; secondly, the fiber is mixed into the slurry. According to the different forming methods, the premixed process can be divided into premixed pouring process and premixed spraying process. The process of premixed pouring is similar to that of precast concrete products, and vibration process is often supplemented in the process of pouring.
The above is an introduction to the production of GRC components, which is provided by Jinan GRC components. If you want to know more, please contact us http://www.nyqaac.com Website.
