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L型混凝土快速修补

L型混凝土快速修补
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L型混凝土快速修补剂由多种无机化合物和高效减水剂经适当匹配精制而成。该修补剂加入混凝土中,可以提高混凝土的早期强度和后期强度,也提高了混凝土的抗掺性耐久性。L型混凝土快速修补剂,适用于路面,桥面砼的快速修补,也适用于其他砼的快速修补。
一、主要性能:
  1.细度:0.08mm方孔筛筛余≤8.0%
  2.强度(按525R普通水泥重量14%掺入量时砼强度)

性能
Properties
0±2℃
抗压强度Mpa
Compression Pressure Strength Mpa
一天1day 25.0
二天2day 32.0
三天3day 41.0
抗折强度Mpa
Anti-folding strength Mpa
一天1day 3.0
二天2day 4.5
三天3day 6.0

3.线膨胀率

1d≥0.10%

28d≤0.50%

二、使用方法和注意事项

1、.本砼快速修补剂加入水泥中混合使用,修补剂按水泥重量的13-15%掺入为宜,混凝土配合比可参照以下:

水泥:砂:石: 水: L型修补剂

1.0 1.2 2.8 0.32  0.16

2、在进行砼修补前,先将损坏的混凝土清除干净,表面无灰尘或其他污染物,呈粗糙面,在被修补砼周围至少凿去20mm,防止边缘留有已损坏砼,保证新老砼界面的粘结强度。

3、先用清水湿润修补处,把灰尘、泥浆去除,使修补处呈滚滚无积水状,于进行砼浇捣。

4、可用人工或机械搅拌,把拌好的砼倒入修补处,用机械振捣密实抹平。

5、施工完毕后,用湿草包或麻袋覆盖养护一天。

6、本修补剂已含有高效减水剂,在砼拌和时,不需再加减水剂。

L type conctete fast repair agent consists of several kinds of inorganic compounds and high efficient water reducing agent.When the repair agent is added into the concrete,the strength of early and later periods of concrete can be improved,also the antiseep and durability of concrete can be raised.It can be used for fast repair of road surface and bridge surface concrete,and other concrete fast repair.
Main Properties of L Type Concrete Fast Repair Agent
1. Fineness:0.08mm square mesh sieve≤8.0%
2. StrengthLThe concrete strenth is according to 525#common cement weight 14% added)
3. Line Expansion Rate:
a day&0.10%
28day<0.50%

II.Method of Use and Attention Items
The concrete ration can see the following cement 1.0,sand 1.2 stone:2.8,water:0.32.
L type repair agent:0.16
2.Before repairing,the damaged concrete should be cleaned,the surface with out dust and other things,is rough,at least 20mm repairing surface should be dig out in order to avoid edge damaged concrete and ensure the adhesive strength between old and new surfaces.
3.At first,watering the repairing part by clean water,and removing the dust and slurry,and make the repairing surface wet without any water,then cast concrete.
4. Mixing work can be done by manpower or mixer,the mixed concrete should be poured into the repairing part,then leveling and ramming by vibrating machine.
5. After constructin,the wet straw bags or gunny bags should be covered on it for a day.
6. This repairing agent includes high effective reducing water agent,when mixing,It is unnecessary to add it again.


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