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地质钻探施工中，在封孔、护壁、堵漏、止水和固孔各方面均要使用水泥做材料。所用的水泥有硅酸盐水泥，矿渣水泥和硫铝酸盐地勘水泥等。要使水泥浆达到预期效果，必须设法提高其流动度，并降低水灰比。这样既有利于泵送灌注，又能缩短候凝时间，达到早期强度，缩短施工周期。在水泥浆中加入高效减水剂，就能达到上述要求。常用的高效减水剂有CRS，FDN，NNO，NF……等品种。由于它们的成分性质不同，掺用量也不相同，所以在使用前应先做小样试验，确定合适配方，然后在现场使用。高效减水剂的掺用量和水泥浆的流动度成正比例变化，而和水灰比成反比例变化。
In geological drilling, cement is used as the material for sealing, wall protection, plugging, water stopping, and solid holes. The cements used were Portland cement, slag cement and sulphoaluminate minerals. To achieve the desired effect of the cement slurry, it must seek to increase its fluidity and reduce the water-cement ratio. This will not only facilitate pumping and infusion, but also shorten the waiting time, achieve early strength, and shorten the construction period. The above requirements can be achieved by adding a superplasticizer to the cement slurry. Commonly used superplasticizers are CRS, FDN, NNO, NF... and other varieties. Because of their different compositional properties, the amount of blending is not the same. Therefore, a small sample test should be done before use to determine the appropriate formulation and then used in the field. The dosage of high-range water-reducing agent is proportional to the fluidity of the cement slurry and inversely proportional to the water-cement ratio.