expansive material

A research on the multifunctional expansive material for oil and gas well

多功能油气井水泥膨胀材料的研究

Concrete ; The application of cement expansive material

混凝土膨胀剂的应用

A novel expansive material for oilwell cement was studied in this paper .

本文研制了一种新型的油井水泥膨胀材料（DD型），并对其在不同条件下的膨胀量、抗压强度、胶结强度和工程性能进行了评价。

Discussion on Quality Expansiveness of Expansive Material Magnesium Oxide

论氧化镁膨胀材料的品质质量及膨胀性能

Effect of compound MgO expansive material

新型复合MgO膨胀材料的膨胀效果

Compensating Shrinkage of Cement Paste by New MgO-Based Expansive Material

新型镁质膨胀材料对水泥浆体收缩的补偿

A Fluid-Loss Controllable Expansive Material for Oilwell Cement

油井水泥膨胀、降失水双效材料的研究

The thermal actuation is a new way to solve the problem , in which paraffin is used as an expansive material whose coefficient of volume expansion in the melting point temperature range is very high .

石蜡在熔点附近具有很大的体膨胀系数，以石蜡作为热膨胀材料的热驱动是解决这一问题的新途径。

Study on Controlling Coal Spontaneous Combustion at Semi-progressive Working Face by Macromolecular Mixed Soluble Expansive Colloidal Material

高分子复混溶胀胶体材料防治半前进式工作面煤炭自燃技术的研究

To compacted samples prepared by same expansive soil material , the smaller the prepared moisture content the higher the expansive force . Even if the moisture content only reduced 1 % - 2 % , the corresponding expansive force would upper to 200 % .

对同一种膨胀土材料，其击实含水量越小，膨胀性越强，甚至含水量降低1%～2%，膨胀力就可以增加到200%以上；

Application of Expansive Soil Waterproof Material in Underground Engineering

膨润土防水材料在地下工程的应用

Expansive property and pore structure characterisitics of magnesium oxide slight expansive cement-fly ash binding material

氧化镁微膨胀水泥-粉煤灰胶凝材料的膨胀性能及孔结构特征