kPumping Aid First, product outline: The Pumping Agent is take the naphthalenesulfonate formaldehyde condensation compound as the principal constituent, the compound many kinds of surface-active substance makes reduces the water pump over medicinal preparation ordinary. This product has suitably reduces the water rate, the caving in loss is small, may alleviate the cement the early hydration, reduces the hydration heat, but still had the good morning to be strong, the enhancement effect, widely applies in the trade tong, the high-rise construction, the highway bridge, the railroad, the tunnel, the understructure work, the water conservation, the electric power project, the great volume tong, the prestressed rinforcement project. This product each kind of technical specification achieves the JC473-2001 top-quality product the standard. Second, homogeneity target:
Project | Target | Project | Target |
Outward appearance | Powder | Yellow powdery | Cement only thick liquid mobility | ≥160mm |
Fluid | Brown liquid | Liquid density (g/mL) | 1.20±0.02 |
PH value | 7-9 | Moisture content | ≤10% |
Degree of fineness | 0.315mm triage ≤12% | Chloride ion content | Does not have |
Third, major technique performance: 1st, mixes the quantity for the gelled material amount used 1.0-1.5% (medicinal powder); 1.2-1.8% (liquid), reduces Shui Lvke to achieve 13-18%. 2nd, the same water ratio mixes in this, may make concretes caving to increase above 10cm, in with the cement content and with the slump condition, an concretes 3 day of intensity may talk on endlessly a design intensity 70-80%,7 day of intensity to be possible to achieve above 90%, 28 day of intensity mixing may not enhance 20%, raises concrete template's cycling rate, speeds up the construction speed. 3rd, slump after when loses is small, the 60min slump loss ≤20mm, suits in the commodity concrete transportation and the pump over construction. Can obviously improve concrete the workability, does not segregate, not the weeping, thus enhanced concrete impervious, flue, durable and so on many targets, after causing the hardening tong and the township physical mechanics target has the distinct enhancement. 4th, has the good retardation. May alleviate cement the hydration heat, eliminates crack which creates by the temperature difference. 5th, this product is the low alkali, the non-chlorine salt, to the steel bar non-corrosion function. Will not produce the alkali aggregate to respond that may use to tong the durable request high special project. 6th, this product has the good compatibility to each kind of cement, the application scope is widespread. Fourth, applied technology main point: 1st, please obey "Concretes Admixture Applied technology Standard" the stipulation. 2nd, this medicinal preparation has the retardation, in the field application wants the strict control to mix the quantity. 3rd, spikes when this product should measure, to refuse precisely repeatedly to spike and to leak mixes. 4th, for the guarantee best use effect, suggested the user, in primary four use this or before the project exchanges the cement variety, should act according to the project the special details, after tries to match the experiment to determine that mixes the quantity best and spikes the method. 5th, this medicinal preparation uses mixes the law dry, will probably the dosage mixes evenly after the aggregate add water the agitation, also after the product treats the watering agitation, joins after in turn, stirs again then. Fifth, packing storing: 1st, this installs in the inside lining plastic film knitting bag, the weight is 50kg (medicinal powder); The liquid medicine uses the seal the hard loaded in barrels, the weight is the 200kg/barrel or the 300kg/barrel 2nd, should lay aside coolly in dry place, rainproof, moisture-proof, against breakage. 3rd, the term of validity two years, go over the time limit after the concretes try to match the experiment qualified still might continue to use.
Test subject | Leaving the plant technical specification | Profession standard (top-quality product) |
Slump increase in value (mm) | ≥100 | ≥100 |
The atmospheric pressure weeping rate compares (%) | ≤80 | ≤90 |
The pressure weeping rate compares (%) | ≤80 | ≤90 |
Air content (%) | ≤4.0 | ≤4.5 |
Slump retention value (min) | 30min | ≥150 | ≥150 |
60min | ≥130 | ≥120 |
The resistant to compression strength ratio (%) is not smaller than | 3 days | 95 | ≥90 |
7 days | 95 | ≥90 |
28 days | 100 | ≥90 |
The shrinkage compares (%) | 28 days | ≤125 | ≤135 |
To steel bar corrosion function | Does not have the corrosion | Should explain whether there is to rust away the function to the steel bar |
