The influence of gypsum content on water demand, time of setting, strength and shrinkage of high Performance cementitious material is tested as warrant for optimizing gypsum content.

试验研究了石膏的掺量对高性能胶凝材料的需水量、凝结时间、强度、收缩性的影响，以此作为优化石膏掺量的依据。

youdao

A new method of volumetric deformation measurement is proposed, which can measure the shrinkage of cement paste from initial setting.

提出了密封试样细管排液的体积变形测定方法，该方法可测定水泥石自初凝起的收缩。

youdao

The workability, strength, setting time and shrinkage of cement mortars with Bao Steel rotating furnace slag (BSRS) or electric furnace slag (EFS) as substitute for sand were studied.

研究了宝钢转炉滚筒渣、电炉渣代砂建筑砂浆的和易性、强度、凝结时间和收缩等性能。

youdao

The shrinkage of the printed book business - particularly in non-fiction - has also led the publisher setting up ad-funded websites Honest John - for car enthusiasts, the Complete University Guide and home-grown veg site Allotments.

BBC: Ebooks: Is digital opening up a new chapter for publishing?