在粗骨料和硬化水泥 沙浆 之间有许多微裂纹。
There are many micro-cracks between the stones and the ossified cement grout.
运河工程师Canvass White解决了一个施工难题，他发明了水下硬化水泥。
Canal engineer Canvass White solved one of the construction obstacles when he discovered how to create a cement that hardened underwater.
GCL1与保水剂hec、引气剂复配时，改善了水泥净浆的保水性能，提高了硬化水泥的早期及后期抗压强度。
When GCL1 combined with water retaining admixture HEC and air entraining agent, it will further improve the water retaining performance and increase the early stage and long term compressive strength.
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