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«HIDETAL-GP-9» delta «B»

Superplasticizer 5th generation (giperplasticizer) on the basis
of ether polycarboxylates for concretes

Description

Hyperplasticizer use "HIDETAL-GP-9" delta "B" Would allow an increase of mobility of a concrete mix to with П1 to П5, to make a concrete work at negative temperatures of air, according to GOST 24211-2008:



On a method of "warm concrete»:

To-20°S

On a method of "cold concrete»: 

To-20°S

Efficiency of action of the additive is caused by complex interaction with a concrete mix:

- For use account polycarboxylates, the water cement parity decreases. It leads to that till the moment of fall of a concrete temperature more low 0°С, the greatest possible part of water enters reaction of hydration with cement and is in the connected condition;

- Not "the salt" components of the additive entering reaction with remained free water, form connections electrolytic a type and interfere with its freezing to - 20°С.

Mobility increase b/s

P1-P5, ОК> 25сm, RК> 63сm

Water flow reduction

to 25%

Reduction of the expense of cement

to 25%

Frost resistance

Increase at 2 marks and more

Watertightness

Increase at 4 steps and more

Retentive mix ***

up to 8 hours

Interaction with armature

passivation fittings






















* - At use of the water reduced structure, concerning the telltale.


** - It is not recommended to reduce the cement maintenance at work temperatures more low-10°S;

*** - The indicator differs depending on a concrete composition, quantity of the entered additive, temperature of air, temperature of loaded components;

Sphere of application

All sorts of concrete, including prestressed железобетоны and especially responsible concrete products, in particular:

  • By manufacture of commodity concrete in winter conditions;
  • Intra factory manufacture reinforced-concrete and concrete articles in conditions without parboiling technologies;
  • In road concreting;
  • At preparation of water mortars during the winter period;

Advantages

  • Low dosage.
  • Does not demand additional operation on dilution.
  • Use in any classes of concrete is expedient, at mobility from П1 to П5;
  • Efficiency does not freeze and keeps at storage to-30°S that allows to use the additive on open proving grounds or not to allocate the equipped premises for additive storage on manufacture;
  • For the account of high water reducing ability allows to reduce considerably the expense of cement with an exit to branded durability ****;
  • Reduces water partitioning off and an exfoliation on of highly mobile mixes;
  • At use plastifying effect - reduces time of vibrating of products, facilitates concrete consolidation.
  • Raises water tightness and frost resistance of concrete;
  • The additive not combustible. It is not fetid, - possesses an easy technical smell;
  • The additive concerns 3 class of danger in accordance with GOST 12.1.007                                         (moderately dangerous substance). 
  • At long storage in capacities does not drop out in a deposit.




**** - Value depends on a quality class, properties of cement and some other factors.

The dosage and administration of supplements

From 0.4 to 1.6% by weight of the liquid cement additive substance. Negligible overdosing additives do not affect the quality characteristics of products. Introduced together with the mixing water. Do not inject into the dry mix!

When dosing additives in terms of the weight of the cement additives desirable to adhere to the following order: First, calculate the weight of additives, based on bookmarks cement. Then you can calculate: Volume supplements, (l) = weight additives (kg) / Density supplements (exact density additives indicated in the passport, by lot or on the label). 


          The order of loading of materials using unheated water is different from that adopted in the concrete node. When using water heated to 60 - 70 ° C, is desirable to produce cement loading after pre-mixing of water with additives and fillers. 


Allowed to use neotogretyh fillers containing no ice on the beans and lumps of frozen. The duration of mixing concrete mix should be increased to not less than 25%. 

Dosage additives depending on the application temperature:
Design temperature , °С

The dosage of supplements, in% by weight of cement

from 0 to -5

0,4-0,7

   from -5 to -10

0,7-1,0

    from-10 to -15

1,0-1,3

   from-15 to -20

1,3-1,6

Plastifying action increases directly proportionally to quantity of the additive. Therefore, in a case when it is necessary to receive high mobility at small low temperatures (0 ≈ - 10°С) it is necessary to execute one or the other:


1. To Increase an introduction dosage  «HIDETAL-GP-9 delta»;

2. For the purpose of decrease in expenses introduction « HIDETAL-GP-9 delta to carry out in set limits, and a plastification to achieve additional introduction of plasticizers or series superplasticizers «HIDETAL » (the section «Compatibility with other products» see)

Commodity description

Modular condition

Liquid of commodity concentration

Color

From light brown to dark brown
Density, g/cm3

1,250±0,03

PH-indicator, unit, not less

5

Maintenance Cl¯, % no more

0,1

Mass fraction of solid matters, % not less

45,0±3,0

Storage temperature, °С

от -30°С до +30°С

Packing

Square of capacity 15, 220 and 1000 kg

Compatibility with other products

Manufacturer investigated compatibility only with production "SKT-STANDARD". Compatibility with production of other manufacturers - was not checked.

HIDETAL-GP-9 delta is compatible:

- With series plasticizers «HIDETAL-GP-9 delta», for increase in mobility of a mix at small negative temperatures, for the purpose of an exception of the over-expenditure of the additive.

- With SDO or SNV- for increase air entrapment;

- With a lime - at use in water mortars;

At sharing of additives it is necessary to provide separate introduction (with different parts of a mixing water) additives in a concrete mix. It is forbidden to mix additives among themselves!

Warranty and storage conditions

Storage warranty period - 1 year from the date of manufacture. After the storage expiry of the term, the additive can be applied to destination, after carrying out of laboratory researches.

To storage conditions of special requirements it is not shown. It is desirable to exclude a long straight insolation.

The effectiveness of additives

Endurances from the scientific and technical report НИИЖБ published in 2012 are more low resulted. 

In trials following structures were used:

The mixture composition

control

With additive

Cement PC500-D0, kg

350

350/360*

Sand = 2.5 kg

700

700/720*

Crushed granite 5-20 kg

1130

1130/1165*

Water, l

190

190/ 165 *

"HIDETAL-GP-9" delta "B", by weight of cement

-

0,4-1,8% / 1,5%  (5,4 L.)*

OK, cm

10

24/ 10,0*

CC

0,53

0,53 / 0,46 *

* - A fraction of the value:

the first number - the study of increasing mobility;

the second number - the study of water-reducing actions;



                                       Influence of a dosage on mobility of a concrete mix, fashions.

.jpg

                           


                                                               The analysis of a set of durability.


Trials were spent according to GOST 30459. Concrete samples with the additive directly after manufacturing have been placed in the freezing chamber with temperature - 20°С:

- Samples for "cold" concrete - for 28 days;

- Samples for "warm" concrete - at 4 o'clock;

Telltale samples hardened in a standard conditions.

Samples for "cold" concrete after 28 days я in the freezing chamber have been sustained 24 hours at positive temperature 20±5 °С, with the subsequent strength test at compression. In accordance with GOST 24211-2008 indicator should not be less than 30 % from durability of the telltale sample hardening in a standard conditions.

   Samples for "warm" concrete after 4 hours solid in the freezing chamber have been sustained 28 days at positive temperature 20±5 °С, with the subsequent strength test at compression. In accordance with GOST 24211-2008 indicator should not be less than 90 % from durability of the telltale sample hardening in a standard conditions.



Structure Compressive strength
28 day standards. tv., MPa
"HIDETAL-GP-9" delta "B"
Compressive strength Curing Details
in% of control


control

34,2  

"Cold" concrete

10,3 > 30
"Warm" concrete   42,8 125,1



        Definition of influence on protective properties of concrete in relation to an iron fittings.


Trials were spent in accordance with GOST by 31383 electrochemical method on concrete samples made of equal movable mixes with depth of immersion of a cone 2,5-3,5 Trials see were spent after a set by concrete of design durability in 28 days after manufacturing and in 3 and 6 months of trials in a mode of variable saturation by water and torrefaction on 3 parallel samples of one structure.

Name
indicators for corrosion of steel reinforcemen



Characteristics in a passive state in accordance with GOST 3138

"HIDETAL-GP-9" delta "B"





after 28 days







after 3 months





6 after months

Passivation current density at a potential of +300 mV, mA / cm ²²

to 10, inclusive

2,9

3,2

2,7

2,2

3,0

2,6

0,9

1,06

1,1

Potential by (60 ± 5) min. after tripping

. > 5.

>+5

+350

+310

+270



+310

+350

+290



+580

+490

+470

        

    Thus, it is seen that the valve in the samples is in a steady state passivation.