欧美成人午夜在线播放-成人午夜视频欧美-情欲毛片亚洲一区二区-日本亚洲欧美综合在线-欧美亚洲日本va

混凝土攪拌車(chē)較大的特點(diǎn)是其臨時(shí)性，在特定時(shí)間內(nèi)為特定混凝土工程服務(wù)，然而，有些項(xiàng)目的混凝土工程容易出現(xiàn)質(zhì)量問(wèn)題，也給工程進(jìn)度和經(jīng)濟(jì)效益造成很大影響。所以，混凝土攪拌車(chē)的質(zhì)量控制非常有必要。

The bigger characteristic of concrete mixer truck is its temporality, which serves for specific concrete engineering in a specific time. However, some concrete engineering projects are prone to quality problems, which also has a great impact on the project progress and economic benefits. Therefore, the quality control of concrete mixer is very necessary.

，混凝土配合比要保證混凝土有良好的工作性能，比如可泵性、大流動(dòng)性、自密實(shí)性等。要滿足工程結(jié)構(gòu)物強(qiáng)度、耐久性及其他特別設(shè)計(jì)要求?；炷猎谂浜媳仍O(shè)計(jì)中要積極合理應(yīng)用減水劑等混凝土外加劑，以減少混凝土用水量，降低水膠比，提高混凝土強(qiáng)度。在混凝土中適量摻加優(yōu)良粉煤灰、礦粉等外摻料，取代部分水泥和部分細(xì)骨料，在保證混凝土強(qiáng)度等級(jí)與工作性能要求下，可以顯著提高混凝土的密實(shí)性，增加對(duì)鋼筋的保護(hù)作用，同時(shí)降低混凝土經(jīng)濟(jì)成本。

First of all, the concrete mix proportion should ensure that the concrete has good working performance, such as pumpability, large fluidity, self compacting, etc. To meet the engineering structure strength, durability and other special design requirements. In the mix proportion design of concrete, concrete admixtures such as water reducer should be actively and reasonably applied to reduce the water consumption of concrete, reduce the water binder ratio and improve the strength of concrete. Adding fine fly ash, mineral powder and other admixtures in concrete to replace part of cement and part of fine aggregate can significantly improve the compactness of concrete, increase the protection of reinforcement and reduce the economic cost of concrete under the condition of ensuring the strength grade and working performance of concrete.
            

其次，混凝土攪拌車(chē)原材料的管理要加強(qiáng)，砂、石料場(chǎng)要有良好的排水設(shè)施，以免底部積水。水泥、粉煤灰等粉料倉(cāng)要有防潮、防雨措施。砂石料按品種、規(guī)格分隔堆放，避免混料。各種材料要標(biāo)識(shí)清楚，特別是水泥、粉煤灰筒倉(cāng)、外加劑貯存?zhèn)}等進(jìn)料口要加蓋標(biāo)識(shí)，專(zhuān)人管理，以防止進(jìn)錯(cuò)料或受污染。

Secondly, the management of raw materials of concrete mixer should be strengthened, and the sand and stone yards should have good drainage facilities to avoid ponding at the bottom. Moisture proof and rainproof measures shall be taken for cement and fly ash silos. Sand and stone materials shall be stacked separately according to varieties and specifications to avoid mixing. All kinds of materials shall be clearly marked, especially the cement, fly ash silo, additive storage bin and other feeding ports shall be stamped with marks, and managed by special personnel, so as to prevent wrong feeding or pollution.

混凝土攪拌車(chē)能夠加快施工進(jìn)度、減少環(huán)境污染、改善施工條件、提高工程質(zhì)量和節(jié)約材料成本。但是，混凝土攪拌車(chē)的質(zhì)量控制也是不可遺漏的要點(diǎn)。

Concrete mixer truck can speed up construction progress, reduce environmental pollution, improve construction conditions, improve project quality and save material cost. However, the quality control of concrete mixer truck is also an important point.