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JW-II脂肪族缓凝高效减水剂(粉剂)

更新:2014-07-03 10:42??????点击:
产?#26041;?#32461;

 

 JW-II脂肪族缓凝高效减水剂

  JW-II脂肪族缓凝高效减水剂系丙酮磺化合成的羰基焦醛,憎水基主链为脂肪族烃基高效减水剂以及适量缓凝、增强等组分复合而成,具有高效减水、缓凝、保坍和增强等功能。产品对水泥适应性强,掺量少,使用方便,特别适用于高效减水和缓凝要求的混凝土工程。

  一、主要性能

  ▉本品分为粉剂和液体两种,粉剂?#39318;?#35088;色,水剂?#39318;?#40657;色。产品性能稳定,无毒、无刺激性和放射性,?#32531;?#23545;钢筋有锈蚀危险的物质。

  ▉增大流动性:水泥净浆流动度大于200mm,当缓凝土配合比不变?#20445;羧?#36866;量高效减水剂后,可将拌合?#31995;?#27969;动性由0~50mmt提高到150~250mm。

  ▉高效减水:按照国家规定?#20013;?#26631;准GB8076-2008《混凝土外加剂检测》,其减水?#34432;?8%以上,最大的可达25%

  ▉高保坍:本产品采用反应性高分子共聚物为保坍组分,其保坍能力很强,而却对水泥?#20998;幀?#22411;号及其气温适应性强,几乎不受温度变化的影响。在气温低?#20445;?#28151;凝土坍落?#20154;?#22833;慢,反应性高分子共聚物的释放速度慢;气温高?#20445;?#28151;凝土坍落?#20154;?#22833;加快,反应性高分子共聚物释放速度加快,混凝土的保坍能力提高。

  ▉缓凝效果明显。掺用本产品的混凝土,其初凝时间可延缓10h左右,这一特性为避免或减少施工裂缝提供了不少保证,也可通过调整产品配方以调整混凝土的凝结时间,确保满足工程需求。

  ▉提高混凝土强度:在单位胶凝用量相同的条件下,其28d强度较普通混凝土一般可提高35~60%

  二、适用范围

  产品可广泛适用于高效减水和缓凝要求的混凝土

  三、使用方法

  ▉粉剂量为胶凝材?#31995;?.5-1.0%,水剂为1.3-2.0%.

  ▉粉状固体若直接使用,应与胶凝一道?#24230;?#25292;合为切勿直接加在湿的砂、石表面;若配成溶液,则应充分溶解。

  ▉为确保混凝土土均质性,搅拌时间要延长30~60秒。

  四、包装与贮存

  ▉粉剂采用内塑料袋外编织袋包装,?#30475;?#20928;重40公斤,水剂罐装或协议包装。

  ▉应在干燥?#32938;?#20013;存放,水剂要密封,粉剂要注意防?#20445;?#36991;免结块。

  ▉本品有效期三年,粉剂堆放高度不宜超过10袋。

  五、技术服务

  根据用户和工程的需要,有时需要特定配方的JW-III缓凝高效减水剂,我公司将根据您的工程技术要求,实?#36866;?#29992;的原材料以及工地的特定条件,做出评估分析来确定特定的配方,?#28304;?#26469;最佳的砼质量和最好的经济效益。

 
       JW-II Aliphatic retarded superplasticizer

  JW-II Aliphatic retarded superplasticizer is of acetone sulfonated synthetic aldehyde carbonyl coke, hydrophobic main chain aliphatic hydrocarbon and the amount of retarding superplasticizer, enhancement component composite made with efficient water reduction, slow condensate, slump and enhanced functions. Adaptability of cement products, low dosage, easy to use, especially for concrete and efficient water reducing retarding requirements of the project.

  The main performance

  ▉This product is divided into two kinds :powder and liquid , powder is brown, agent is brown black . Products performance is stable, non-toxic, no stimulation and radioactivity, no rust risk of reinforced material.

  ▉Increased fluidity: the fluidity of cement paste is greater than 200mm, when the retarding soil mix ratio, adding superplasticizer, the liquidity of mixture composed of 0 ~ 50mmt to 150 ~ 250mm.

  ▉High-efficient water reducing: according to the current standard GB8076-2008 "test of concrete admixture" provisions of the state, the water reducing rate of more than 18%, the largest up to 25%

  ▉High slump: This product uses reactive polymer as the slump of graves, the slump retaining ability is very strong, but the type and temperature adaptability of cement varieties, strong, nearly not affected by temperature changes. In low temperatures, the slump loss of concrete is slow, reflecting the release rate of copolymers slow; In high temperatures the concrete slump loss accelerated, reactive polymer release speed, improve the concrete slump retaining ability.

  ▉Retarding effect is obvious. Mixed with this product concrete, the initial setting time delay of about 10h, the characteristics of construction in order to avoid or reduce the gap to provide a lot of assurance, also can adjust the product formula to adjust the setting time of concrete, to ensure that meet the requirements of engineering.

  ▉Improve concrete strength: in terms of unit under the same amount of cementing material, its 28d strength is lower than ordinary concrete can be increased by 35 ~ 60%

  Scope of application

  Products can be widely applied to high efficiency water reducing and retarding requirements of concrete.

  The use of methods

  ▉Powder content of cementitious material 0.5-1.0%, agent 1.3-2.0%

  ▉Powdered solid if direct use, should be mixed with cement an input is not directly add surface in the wet sand, stone; if the match into solution, it should be fully dissolved.

  ▉In order to ensure the concrete soil heterogeneity, stirring time should be extended from 30 to 60 seconds.

  Packaging and storage

  ▉Powder using plastic bag inside, outer woven bag, net weight 40 kg per bag, canned or agreement packaging agent.

  ▉Should be stored in dry conditions, water should be sealed, powder should pay attention to moisture, avoid caking.

  ▉This product is valid for a period of three years, powder stacking height should not be more than 10 bags.

  Technical service

  According to the needs of users and engineering, sometimes need a specific formulation of the JW-II retarding superplasticizer, our company will according to your requirements engineering technology, the specific conditions of raw materials and site, make evaluation and analysis to determine the specific formula, with the best since the concrete quality and the best economic benefit.


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