化工
建材化学产品 > LonS-P (B) Poly Carboxylic Acid High Performance Pumping Agent
LonS-P (B) is a kind of high performance pumping agent, containing modified polycarboxylate and other polymers. It is specially designed to reach high water reduction and less slump loss. It is especially suitable for high temperature conditions to improve greatly the plasticity retention of concretes.
I、Performance and Features
High water reduction | Excellent early and post strength, improving permeability resistance and durability of concrete |
High fluidity | Easy for casting and hardening, no isolation |
Less slump loss | No need for remixing; convenient to be transported to the casting site |
Low shrinkage, creep | Improve volume stability of constructed objects, reduce shrinkage risk |
Good moisture retention | Easy for pumping, no bleeding |
Outstanding working performance | Easy for construction, with good surface and appearance |
II、Application Scope
Large projects, turnover of mixing facilities speeds up.
High fluidity concretes
Strong durability concretes
High strength concretes
Ready-mixed concretes
Precast concretes
Mass concretes
Long-distance transport concretes
III、Blend Dosage
Blend dosage is finally determined by mixing proportion, ambient environment and the required water reduction and workability. The regular dosage is 1.1% as cement amount, and the dosage range is 0.5-2.5%; The optimal blend dosage shall be determined based on the trial mixing proportion.
Dosing: LonS-P (B) can be directly added into mixing water or the wet concrete already mixed with mixing water; it is not recommended to add LonS-P (B) into dry concrete mixture. Separate batcher and feeding tube are needed.
IV、Properties
1、LonS-P (B) is a safe and environmental friendly high efficiency superplasticizer featuring low dosage, high water reduction and good cement adaptability without any influence upon the environment.
2、LonS-P (B) is brownish liquid, and its homogeneity indexes are as follows:
Total Solid% | Density g/ml | PH value | Cl- content % | Alkali content % | Formaldehyde content |
20±2 | 1.07±0.02 | 6~8 | ＜0.05 | ＜2 | 0 |
3、Performance indexes of concrete blended wtih LonS-P (B)
ltem | Water reduction % | Ratio of bleeding% | Air content % | Temporal Distribution for Setting min | Compressive Strength, % | shrinkage (d | Slump Loss within 1 hour （mm） | |||
Initial setting | Final setting | 3d | 7d | 28d | ||||||
Enterprise standard | ≥20 | ≥70 | ≤7 | ＞+90 | ＞+90 | ≥140 | ≥130 | ≥120 | ≥120 | ＜60 |
Note: Standard blend dosage 0.3% for powder (as cement amount). | ||||||||||
4、LonS-P (B) cannot be used together with other water-reducers and superplasticizers.
V、Packing and Storage
LonS-P (B) shall be packed in plastic drums, 200kg/drum; or tank car can be adopted in bulk packing.