我厂专业提供十余个品种的特种水泥,包括:U型、S型超细水泥、GC灌浆材料、S型瞬凝水泥、BISO无收缩水泥、混凝土快速修补砂浆、L型混凝土快速修补剂等新品种

GC-灌浆材料

GC-灌浆材料
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GC灌浆材料是以优质硅酸盐水泥熟料和多种无机矿物特制而成的水硬性胶凝材料。浆液流动性好、结石强度高、具无收缩性、无毒无害、不具污染、适用于地铁隧道、高速公路、水库大坝、机场跑道等建筑物地基灌浆加固以及桥梁支柱底座灌浆,现场浇注灌注桩、机器底脚螺栓予埋孔和混凝土基础裂隙、孔穴的注浆。这种材料具微膨胀性,也适宜配制无收缩混凝土(或砂浆)等其他用途,是一种安全的灌浆材料。

A、品质指标:

1.比表面积大于320m2/kg

2.凝结时间

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

按照GB177-水泥胶砂强度检验方法进行

标号
NO.
抗折强度(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.微膨胀
  本材料所制净浆试体在水中养护时,各龄期自由线膨胀率应符合下列要求:
  3d不小于0.10%
  28d不大于0.50%
  5.流动度
  用GC灌浆材料配制的浆液流动性良好,当水灰比=0.5时,其流动度大于300mm。
  6.耐久性与安全性
  GC灌浆材料适当加水拌和制成的标准试块致密性极好,具很强的抗渗能力,而其后期膨胀极微,接近停止,故其长期强度稳定,具较强的抗冻性能,不致遭受冰、霜冻融破坏而裂损。
本产品不含任何氯化物及其他毒性的有害物质,不会造成污染,具有持久稳定的耐久性与安全性,其抗渗对比试验,见下表:

对试验材料
Contrast test material
28d抗渗性试验(Mpa)
28d impermeability test(Mpa)
硅酸盐水泥
Silicate cement
0.90
GC灌浆材料
GC Grouting material
2.00

B.使用注意事项
  1.用GC灌浆材料灌浆时可用调节浆液稠度。配浆时(或掺用一定量的细砂)先置于带有搅拌装置的拌和机内加水搅拌,达到预定稠定即可使用,但必须注意,不同施工条件须应用不同稠度的浆液,其用水量参考如下:人工倾注:水灰比在0.35-0.40之间
  泵送灌浆:水灰比在0.30-0.35之间
  2.GC灌浆材料配制无收缩混凝土(或砂浆)的配比设计,可参照普通混凝土配比计算方法。
  3.浇注无收缩混凝土(或砂浆)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其它方法,将混凝土施工面层的碎石、碎屑、尘埃以及其它杂物彻底清除干净。
  4.施工前:须先将凿毛之混凝土表面充分浇水淋湿:然后将多余的水分擦干后再行浇注。同时,须用混凝土震荡器振捣密实,并且尽量排队灌浆内空气气泡。
  5.为提高浆液的流动性,可掺用适量的SN-II高效减水剂,先将SN-II高效减水剂按要求比例加入拌和水中充分溶解后再与灌浆材料拌和使用。
  6.施工现场,应经常检查浆液的稠度,严格控制用水量和外加剂掺量。
  7.浇制完毕后,须用吸水性好的草包,麻袋之类浇水覆盖养护,并经常淋水,保持湿度,三天以上方可使用。
  8.GC灌浆材料须存放在干燥,通风良好的地方,谨防受潮结块;本产品有效期为三个月,逾期使用必须重新检验后方可使用。

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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