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。
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。
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。
It has been shown that limestone can reduce drying shrinkage, standard consistency and setting time of high zeolite cement.
结果表明：石灰石的加入，提高了高沸石水泥的早期强度，降低了水泥的标准稠度、凝结时间及干缩率。
The author analyses some problems in pool design, such as the determine of groundwater level, the setting of shrinkage joint, practice of later casting zone and the fitting of design and construction.
通过作者多年在水池设计中所遇到一些常见问题，从结构专业的角度出发，分析探讨了地下水位的确定、伸缩缝的设置、后浇带的做法及设计与施工配合等问题。
Pre-heat setting before dyeing helps to improve thermo-stability and diminish the influence of supercritical CO_2 dyeing on shrinkage of the polyester fabrics.
预定型处理有助于提高聚酯纤维的热稳定性，降低二氧化碳处理对聚酯织物收缩率的影响。
The reason causing shrinkage defect was analyzed, and the following measure was adopted: setting chills on both the top and bottom surfaces of the casting.
对引起缩松的原因进行了分析，并采取了相应的工艺措施，上下底面同时加冷铁，消除了缩松缺陷。
Prolonging the heat-setting time to provide enough relaxation time for high elastic strain, which can also reduce the inner stress and the dry heat-shrinkage.
延长定型时间有利于高弹形变的松弛，降低内应力，有利于降低干热收缩。
High shrinkage polyester staple was prepared by using amorphous polyester chip. The technology of drying, spinning, drawing and non-setting was studied.
采用非结晶聚酯切片制备高收缩涤纶短纤维，对切片干燥、纺丝、拉伸、定型等工艺进行了研究。
Restraining the shrinkage and crack of concrete by using of expansive agent has been an effective controlling method since the setting of shrinkage-compensating theory.
自补偿收缩理论建立以来，采用混凝土膨胀剂抑制混凝土的收缩开裂是行之有效的控制方法。
High shrinkage PET staple fiber is mainly made by the adoption of low temperature drawing, suitable reduction of draw ratio and non-setting process.
涤纶高收缩短纤维的制取，主要采用低温拉伸、适当降低拉伸倍率以及不定型工艺。
High shrinkage PET staple fiber is mainly made by the adoption of low temperature drawing, suitable reduction of draw ratio and non-setting process.
涤纶高收缩短纤维的制取，主要采用低温拉伸、适当降低拉伸倍率以及不定型工艺。
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