萘系高浓 减水剂FDN-A高性能无氯减水剂（粉剂）

Naphthalene Series High Concentration Superplasticizer

FDN-A High Performance Chlorine-Free Water Reducing Agent (Powder)

一、适应范围
1、适用于现浇，预制的钢筋混泥土，以及外掺粉煤灰混泥土。

2、适应配制早强，高强，高抗渗，自密实，泵送混泥土及流灌浆材料。

3、可以广泛用于自然养护及蒸汽养护的混泥土工程及制品。

4、对于硅酸盐水泥，普通硅酸盐水泥，矿渣硅酸盐水泥，粉煤灰硅酸盐和火山灰硅酸盐水泥均有较好的适应性。

5、可用于配制各种系列的混泥土外加剂。

二、主要性能
1．SH-II型减水剂符合国家标准GB8076-1997《混泥土外加剂》。

2、SH-II型粉剂产品属萘系 减水剂。外观呈棕褐色无毒无嗅不然，对钢筋无锈蚀作用。

3、在混泥土中加入推荐掺量的SH-II粉剂，在水泥用量和坍落度相同的情况下，可减少拌合用水量的15-25%左右，其一天强度可提高50-80%，三天强度可提高40-70%，二十八强度可提高30-50%，并且可大大提高和改善混泥土各种物理力学性能。用普通硅酸盐水泥可配制40-80mpa的高强混泥土。

4、在相同的水泥用量及水灰比不变的情况下，可明显增大混泥土的坍落度，改善混泥土的和易性，坍落度可增1.0-1.5倍。

5、在坍落度和强度基本相同的情况下，可节约水泥10-15%。

6、可大大提高和改善混泥土的各种力学性能及抗渗等耐久性能。

三、性能指标

三、推荐掺量

本产品推荐掺量为干混砂浆材料用量的0.4-0.6%,一般其它减水剂常掺量为0.8%左右

I. Scope of adaptation

1. Suitable for cast-in-place, prefabricated reinforced concrete, and mixed with fly ash concrete.

2. Suitable for the preparation of early strength, high strength, high impermeability, self-compacting, pumping concrete and flow grouting materials.

3. Mixed soil engineering and products which can be widely used in natural and steam curing.

4. Portland cement, ordinary Portland cement, slag Portland cement, fly ash Portland cement and volcanic ash Portland cement all have good adaptability.

5. It can be used to prepare various series of admixtures for concrete.

II. Main Performance

1. SH-II water reducer meets the national standard GB8076-1997 "Mixed soil admixture".

2. SH-II powder belongs to naphthalene series superplasticizer. The appearance is brown, non-toxic and odorless, otherwise, it has no corrosion effect on steel bars.

3. When the recommended amount of SH-II powder is added to the concrete, the amount of water used for mixing can be reduced by 15-25% with the same amount of cement and slump. Its strength can be increased by 50-80% in one day, 40-70% in three days, 30-50% in twenty-eight days, and all kinds of physical and mechanical properties of the concrete can be greatly improved and improved. 40-80 MPa High strength concrete can be prepared with ordinary Portland cement.

4. With the same cement dosage and water cement ratio unchanged, the slump of concrete can be significantly increased, the workability of concrete can be improved, and the slump can be increased by 1.0-1.5 times.

5. When the slump and strength are basically the same, the cement can be saved by 10-15%.

6. It can greatly improve and improve the mechanical properties and impermeability of concrete.

III. Performance indicators

Test items

Enterprise standard

test result

Cement paste fluidity mm

More than 210

Two hundred and nineteen

Solid content (%)

Less than 92

Ninety-five point five

Sodium sulfate content (%)

Less than 15

Ten point one

PH value

7~9

Eight

Chloride ion content (%)

Less than 0.1

Zero point zero seven

Recommended dosage

The recommended dosage of this product is 0.4-0.6% of dry-mixed mortar material and 0.8% of other water reducing agents.