Water-preserving agent for cement
A water-retaining agent and cement technology, applied in the field of cement water-retaining agent, can solve problems such as complicated procedures, and achieve the effects of easy dispersion, convenient use, and convenient transportation.
Inactive Publication Date: 2006-08-23
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology
In this way, the curing agent needs to be constructed separately, and the process is complicated.
Method used
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Embodiment Construction
[0008] The present invention is described in detail with an embodiment below:
[0009] A cement water-retaining agent, the composition and proportion of the water-retaining agent are (percentage by weight):
[0010] Hydroxyethyl cellulose ether 70%, redispersible latex powder 15%, super absorbent resin 15%.
[0011] The hydroxyethyl cellulose ether is selected from the hydroxyethyl cellulose ether HS200000 produced by Germany CLARIANT company.
[0012] When using, add the water retaining agent to 250 times of water for mixing, fully dissolve the water retaining agent, let it stand for 10 minutes, and use it to mix the cement.
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Abstract
A water-preserving agent for cement contains proportionally hydroxyethyl cellulose ether, dispersable latex powder and high-hydroscopicity resin. It is applied through dissolving it in water, laying aside for 10 min, and mixing the solution with cement. Its advantage is high effect to preserve water and increase the strength and durability of concrete.
Description
technical field [0001] The invention relates to a water-retaining agent, especially a cement water-retaining agent. Background technique [0002] Cement needs enough water to react with it in the hardening process to ensure the strength of the cement. It is generally required that the freshly finished concrete needs to be watered and cured for more than 7 days. However, in many practical projects, it is often impossible to do watering and curing for 7 days, and the water on the surface of the cement evaporates relatively quickly. If the water in the concrete is not retained, the strength of the cement will inevitably be affected. The traditional method of concrete water retention is to add an appropriate amount of cellulose. Cellulose has a certain water retention effect, but the effect is not good. Especially for thin layer cement, the water retention effect of cellulose is not ideal. At present, there are also curing agents that play a role in water retention on the ma...
Claims
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IPC IPC(8): C04B24/38C04B24/24
Inventor 王立华陈捷段毅凡魏秀婷曲昕褚伟丽
Owner SHANDONG UNIV OF SCI & TECH