如体积变化不均匀即体积安定性不良，容易产生翘曲和开裂，降低工程质量甚至出现事故。
Such as volume change uneven or volume stability, prone to warping and cracking, reduce the engineering quality and even an accident.
本标准规定了水泥标准稠度用水量、凝结时间和由游离氧化钙造成的体积安定性的检验方法。
This standard specified the testing methods of water requirement of normal consistency, setting time as well as soundness of portland cements caused by free calcium oxide.
研究了当水泥中混入隔热防水粉后 ，隔热防水粉对水泥标准稠度用水量、凝结时间及体积安定性的影响 。
The effect of the amount of water needed under the cements normal consistency, setting time and volume stability were investigated when heat insulation and waterproofing powder was added in cement.
所用材料不合格。如砂、石、集料质量不合格；除此之外，大多数是因为水泥体积膨胀率太大(安定性严重不良)。
USES material not qualified. Such as sand, stone, aggregate quality unqualified; In addition, mostly because cement volume expansion rate is too large (stability serious adverse).
所用材料不合格。如砂、石、集料质量不合格；除此之外，大多数是因为水泥体积膨胀率太大(安定性严重不良)。
USES material not qualified. Such as sand, stone, aggregate quality unqualified; In addition, mostly because cement volume expansion rate is too large (stability serious adverse).
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