GRC構(gòu)件內(nèi)所含水分用于水泥水化并因而發(fā)展其強(qiáng)度，降低滲透與收縮。由于水化受到溫度的影響，為此在GRC構(gòu)件養(yǎng)護(hù)過程中應(yīng)使周圍空氣保持適宜的溫度。那么除此之外濟(jì)南GRC構(gòu)件養(yǎng)護(hù)過程中應(yīng)做哪些正確事項(xiàng)？

The water contained in GRC components is used for cement hydration and thus develops its strength, reducing permeability and shrinkage. As hydration is affected by temperature, the ambient air shall be kept at a suitable temperature during the curing of GRC components. What else should be done during the maintenance of Jinan GRC components?

1、GRC構(gòu)件一般均是薄壁和低水灰比的，對(duì)GRC掛板而言則具有較大的表面積。為此應(yīng)采用有效的養(yǎng)護(hù)制度，有合適的早強(qiáng)以利脫模和搬運(yùn);保證設(shè)計(jì)強(qiáng)度;限制收縮以防開裂。養(yǎng)護(hù)可使水泥水化正常進(jìn)行以增強(qiáng)強(qiáng)度與黏結(jié)，程度上減少體積損失、收縮與可能的開裂。控制失去水分，換而言之，即補(bǔ)充水分是養(yǎng)護(hù)的基本點(diǎn)，再外加溫度的控制。

1. GRC members are generally thin-walled and low water cement ratio, and have a large surface area for GRC cladding. Therefore, an effective curing system should be adopted with appropriate early strength to facilitate demoulding and handling; Ensure the design strength; Shrinkage is limited to prevent cracking. The curing can make the cement hydration go on normally to enhance the strength and bonding, and reduce the volume loss, shrinkage and possible cracking to a certain extent. To control the loss of moisture, in other words, adding moisture is the basic point of curing, and then adding temperature control.

2、脫模前與脫模時(shí)在修飾后，通常用潔凈而優(yōu)良的聚乙烯薄膜將模具包住，這是防止GRC中所含水分的蒸發(fā)和受到風(fēng)的影響，同時(shí)也有助于保持水化熱。在養(yǎng)護(hù)的初期應(yīng)使GRC構(gòu)件有足夠的強(qiáng)度，使之在脫模與搬運(yùn)時(shí)不致受到損傷。在某些地區(qū)需要對(duì)GRC構(gòu)件通宵加熱，使溫度保持在15℃以上。

2. Before and during demoulding, after modification, the mold is usually wrapped with clean and excellent polyethylene film, which prevents the evaporation of water contained in GRC and the impact of wind, and also helps to maintain the heat of hydration. At the initial stage of curing, GRC members shall have sufficient strength to prevent damage during demoulding and handling. In some areas, GRC components need to be heated overnight to keep the temperature above 15 ℃.

3、后養(yǎng)護(hù)當(dāng)GRC構(gòu)件在存放與使用時(shí)，其周圍與養(yǎng)護(hù)階段有明顯差異時(shí)，采取有控制的后養(yǎng)護(hù)是必要的。這可以采取一些簡(jiǎn)單的方法使制件在存放過程中免受陽光的直接照射。在存放階段GRC構(gòu)件應(yīng)達(dá)到設(shè)計(jì)的強(qiáng)度，此階段的保護(hù)在于限制其干縮。在上述養(yǎng)護(hù)過程中，GRC構(gòu)件的強(qiáng)度得以進(jìn)一步的提高。搬運(yùn)與存放采取什么方法反映了GRC構(gòu)件可達(dá)到的強(qiáng)度水平。

3. Post curing When GRC components are stored and used, and their surroundings are obviously different from the curing stage, it is necessary to take controlled post curing. This can take some simple methods to protect the parts from direct sunlight during storage. GRC members shall reach the designed strength during storage, and the protection at this stage is to limit their drying shrinkage. During the above curing process, the strength of GRC components can be further improved. The method of handling and storage reflects the strength level that GRC components can reach.

主要養(yǎng)護(hù)階段是使脫模后的GRC構(gòu)件繼續(xù)得到保護(hù)，免受日光、風(fēng)與空氣低濕度的影響，一般情況下仍用塑料薄膜包住GRC構(gòu)件以免受到陽光的直接照射。通過噴濕霧也可保持局部的濕度。關(guān)注我們http://www.dahuachengtao.com為您了解更多注意事項(xiàng)！

The main curing stage is to protect the GRC components after demoulding from sunlight, wind and low air humidity. Generally, GRC components are still wrapped with plastic film to avoid direct sunlight. Local humidity can also be maintained by spraying wet fog. Follow us http://www.dahuachengtao.com Learn more precautions for you!