我厂专业供应十余个种类的特种水泥,包孕:U型、S型超细水泥、GC灌浆质料、S型瞬凝水泥、BISO无膨胀水泥、混凝土快速修补沙浆、L型混凝土快速修补剂等新品种

GC-灌浆质料

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GC灌浆质料是以优良硅酸盐水泥熟料和多种无机矿物特制而成的火硬性胶凝质料。浆液流动性好、结石强度下、具无膨胀性、无毒有害、不具净化、适用于地铁地道、高速公路、水库大坝、机场跑道等建筑物地基灌浆加固和桥梁支柱底座灌浆,现场浇注灌注桩、机械底足螺栓予埋孔和混凝土根蒂根基裂隙、孔穴的注浆。这类质料具微收缩性,也相宜配制无膨胀混凝土(或沙浆)等其他用处,是一种平安的灌浆质料。

A、品格目标:

1.比表面积大于320m2/kg

2.凝聚工夫

初凝:不小于30分钟;终凝:不大于6小时

3.强度:1:25软练胶砂强度

根据GB177-水泥胶砂强度磨练要领停止

标号
NO.
抗合强度(Mpa)
Anti-folding strength
抗压强度(Mpa)
Compression Pressure strength
3d 28d 3d 28d
#25 5.0 7.0 26 52.5
#625 5.5 8.0 31 62.5

4.微收缩
  本质料所制净浆试体正在水中养护时,各龄期自在线膨胀率应相符以下要求:
  3d不小于0.10%
  28d不大于0.50%
  5.活动度
  用GC灌浆质料配制的浆液流动性优越,当水灰比=0.5时,其活动度大于300mm。
  6.耐久性取安全性
  GC灌浆质料恰当加水拌和制成的尺度试块致密性极好,具很强的抗渗才能,而厥后期收缩极微,靠近住手,故其临时强度稳固,具较强的抗冻机能,不致蒙受冰、霜冻融损坏而裂益。
本产物不露任何氯化物及其他毒性的有害物质,不会形成净化,具有耐久稳固的耐久性取安全性,其抗渗对照实验,见下表:

对实验质料
Contrast test material
28d抗渗性实验(Mpa)
28d impermeability test(Mpa)
硅酸盐水泥
Silicate cement
0.90
GC灌浆质料
GC Grouting material
2.00

B.运用注意事项
  1.用GC灌浆质料灌浆时可用调治浆液稠度。配浆时(或掺用一定量的细砂)先置于带有搅拌装配的拌和机内加水搅拌,到达预定稠定便可运用,但必需注重,差别施工前提须运用差别稠度的浆液,其用水量参考以下:野生倾泻:水灰比正在0.35-0.40之间
  泵收灌浆:水灰比正在0.30-0.35之间
  2.GC灌浆质料配制无膨胀混凝土(或沙浆)的配比设想,可参照一般混凝土配比计算方法。
  3.浇注无膨胀混凝土(或沙浆)之前,须将原有混凝土建筑物表层先行凿毛,然后再用高压空气压缩机或别的要领,将混凝土施工面层的碎石、碎屑、灰尘和别的杂物彻底清除清洁。
  4.施工前:须先将凿毛之混凝土外面充裕浇水淋湿:然后将过剩的水份擦干后再行浇注。同时,须用混凝土震动器振捣密实,而且只管列队灌浆内氛围气泡。
  5.为进步浆液的流动性,可掺用适当的SN-II高效加水剂,先将SN-II高效加水剂按要求比例到场拌和水中充裕消融后再取灌浆质料拌和运用。
  6.施工现场,应常常搜检浆液的稠度,严格控制用水量和外加剂掺量。
  7.浇造终了后,须用吸水性好的草包,麻袋之类浇水掩盖养护,并常常淋火,连结湿度,三天以上方可运用。
  8.GC灌浆质料须寄存正在枯燥,透风优越的中央,严防受潮结块;本产物有效期为三个月,过期运用必需从新磨练前方可运用。

GC grouting material made of qualified silicate cement and inorganic mineral matter is a water hardness gelatinzing material,with good grouting flowability,high stone strength,no contract feature,especially no toxic and harmless,no corrosion.It is used for metro tunnel,super-highway,reservoir dam and airport running road,etc.architecture foundation grouting reinforcement and bridge column bottom stand grouting.Casting in site grouting piles,burying holes for machinery screw anchor bolts and concrete foundation cracks,holes grouting.This material has a little expansion,also suitable for non-contract concrete(or mortar),etc.and other uses,it is a safe grouting material without erosion.

A. Specifications of product
1. Specific surface Area
It is more than 320cm2/g
2. Condensing time:primary condensing:not less than30 minutes;final condensing:not more than 6 hours
3. Strength:1:25 soft rubber sand strength
Test as per GB177-Cement rubber sand strength testing method.
4. Light expansion
The net mortar sample made of this material is under water for protection,each period free line expansion rate is confirmed with the following requirements:
3d not less than 0.10%
28d not more than 0.50%
5. Flowability
The grouting made of GC grouting material has good flowability.When water and dust rate=0.5,its flowability s more than 300mm
6. Durability and safety
GC grouting material added certain water to make standard samples is very strong with excellent compactness very good anti-permeability and anti frozen feature,and will not be damaged by frozen and frost.
This product does not include any chloride and other toxic and harmless matter,it will not cause pollution,with stable durability and safety,its impermebility contrast test sees the following table:
B. attention Item for Use
1. When using GC Grouting material,the water can be used to adjust its density.Preparing mortar(or a certain amount of fine sand can be used)first put into the mixer to mix it with water,reaching a certain density,it can be used.But something should be noticed that different construction conditions should use different density grouting;using water can see the following for referencde:Manpower pouring:water and dust proportion:Between 0.30-0.35
2. GC Grouting material should be prepared with non-contract concrete(or mortar),the calculation of it according to the common concrete.
3. Before casting non-contract concrete(or mortar),the surface of concrete should be dug to be rough,then the high pressure air compressor or other method will be used to remove the dust and stones thoroughly.
4. Before construction,the surface should be watered,then clean the remained water,finally cast it,At the same tiime,the concrete vibrator should be used for vibation,bubbled should be removed in the grouting.
5. In order to raise the grouting flowability,certain SN-2 high effective reducing water gent can be added,at first,SN-2 high effective reducing water agent is put into the water as per proportion,through mixing and dissolving,then mixed with grouting.
6. Construction site:The grouting deseness should be often checked,at the same time water and agent should be strictly controlled,especially water can not be too much.
7. After casing concrete,straw bags and gunny bags which are good at absorbing water must be use after watering and soaing,covering for protection at once,often watering to keep moisture,over 7 duys[rptectopm,it can be used.
8. GC grouting material is well packed,but is must be kept in dry and ventilation places to prevent moisture and stone;it can be stored for 3 months,if overtime,it should be inspected again,then it can be used.

用于高速公路快速修补
用于高速公路快速修补
Used For Different Expressway

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