A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-density cement paste system
The invention provides a low-density cement paste system. The low-density cement paste system comprises the following components in parts by weight: 100 parts of G oil well cement, 65-80 parts of microbeads, 20-30 parts of micro-silicon, 8-12 parts of an early strength agent, 4-6 parts of a fluid loss agent, 3-5 parts of a dispersing agent, 0.2-0.4 part of a retarder, 0.5-1 part of a defoaming agent and 200-210 parts of water, wherein the early strength agent is prepared by mixing sodium chloride, aluminum potassium sulfate, triethanolamine, lithium oxalate and micro-silicon according to a ratio of (1-2):(1-1.5):(0.75-1.25):(0.25-0.5):(0.5-0.75). The cement paste system has the advantages of being good in sedimentation stability, good in rheological property and small in water loss.
本发明提供了一种低密度水泥浆体系，包括以下重量份的组分：G油井水泥100份、微珠65‑80份、微硅20‑30份、早强剂8‑12份、降失水剂4‑6份、分散剂3‑5份、缓凝剂0.2‑0.4份、消泡剂0.5‑1份和水200‑210份。其中早强剂由氯化钠、硫酸钾铝、三乙醇胺、乙二酸锂和微硅按照1‑2:1‑1.5:0.75‑1.25:0.25‑0.5:0.5‑0.75的比例混合制成。该水泥浆系具有沉降稳定性好，流变性好以及失水量小的优点。
Low-density cement paste system
The invention provides a low-density cement paste system. The low-density cement paste system comprises the following components in parts by weight: 100 parts of G oil well cement, 65-80 parts of microbeads, 20-30 parts of micro-silicon, 8-12 parts of an early strength agent, 4-6 parts of a fluid loss agent, 3-5 parts of a dispersing agent, 0.2-0.4 part of a retarder, 0.5-1 part of a defoaming agent and 200-210 parts of water, wherein the early strength agent is prepared by mixing sodium chloride, aluminum potassium sulfate, triethanolamine, lithium oxalate and micro-silicon according to a ratio of (1-2):(1-1.5):(0.75-1.25):(0.25-0.5):(0.5-0.75). The cement paste system has the advantages of being good in sedimentation stability, good in rheological property and small in water loss.
本发明提供了一种低密度水泥浆体系，包括以下重量份的组分：G油井水泥100份、微珠65‑80份、微硅20‑30份、早强剂8‑12份、降失水剂4‑6份、分散剂3‑5份、缓凝剂0.2‑0.4份、消泡剂0.5‑1份和水200‑210份。其中早强剂由氯化钠、硫酸钾铝、三乙醇胺、乙二酸锂和微硅按照1‑2:1‑1.5:0.75‑1.25:0.25‑0.5:0.5‑0.75的比例混合制成。该水泥浆系具有沉降稳定性好，流变性好以及失水量小的优点。
Low-density cement paste system
一种低密度水泥浆体系
2020-09-11
Patent
Electronic Resource
Chinese
| European Patent Office | 2022
| European Patent Office | 2021