6 sentences

1. 混凝土浇注怎么还没开始？

   hùn​níng​tǔ jiāo​zhù zěn​me hái méi kāi​shǐ?

   Why hasn't the concrete pour started yet?

   Source: OpenSubtitles

2. 工人们正在往地基里浇筑混凝土。

   gōng​rén men zhèng​zài wǎng dì​jī lǐ jiāo​zhù hùn​níng​tǔ.

   The workers are pouring concrete into the foundation.

   Source: Dong Chinese Dictionary

3. 施工队正在拆除混凝土墙的模板。

   shī​gōng​duì zhèng​zài chāi​chú hùn​níng​tǔ qiáng de mú​bǎn.

   The construction crew is removing the formwork from the concrete wall.

   Source: Dong Chinese Dictionary

4. 混凝土浇筑完毕后应及时进行养护。

   hùn​níng​tǔ jiāo​zhù wán​bì hòu yīng jí​shí jìn​xíng yǎng​hù.

   After the concrete is poured, it should be cured in a timely manner.

   Source: Dong Chinese Dictionary

5. 房屋的框架是由钢筋混凝土制成的。

   fáng​wū de kuàng​jià shì yóu gāng​jīn hùn​níng​tǔ zhì​chéng de.

   The frame of the house is made of reinforced concrete.

   Source: Dong Chinese Dictionary

6. 混凝土需要几天时间才能完全硬化。

   hùn​níng​tǔ xū​yào jǐ tiān shí​jiān cái néng wán​quán yìng​huà.

   It takes several days for concrete to fully harden.

   Source: Dong Chinese Dictionary