Shanghai Shunan Building Materials Co., Ltd.
Main products:inorganic insulation mortar,ceramic adhesive for floor,polymer anti-crack coating,concrete interface agent,putty for wall
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  • Contact Person : Ms. Chen Emily
  • Company Name : Shanghai Shunan Building Materials Co., Ltd.
  • Tel : 86-21-58041299-809
  • Fax : 86-21-58041300
  • Address : Shanghai,Pudong,No.68, Wanda Road, Wanxiang Industrial Park, Nanhui
  • Country/Region : China
  • Zip : 201313

Shunan ZY Concrete Expansive Agent

Shunan ZY Concrete Expansive Agent
Product Detailed
concrete expansive agent is mixed with ordinary cement and hydrated,cement mortar or concrete,to minimize drying shrinkage

High Efficiency Concrete Expansion Agent with Low Alkali Content and Low Addition level ZY®

Expansive agent for concrete.Expancrete is a powder admixture used to manufacture shrinkage-compensated concrete and mortars.Expancrete is suitable for water tight castings and castings that require a contrast to concrete hygrometric shrinkage (water tanks, piping, floors, etc.).Add Expancrete to the mixer at the same time as the other ingredients (cement, aggregates,water).Expancrete is used only for reinforced concrete.one of the important achievements with patent right of China Building Material Academy (CBMA), which was awarded the second prize of National Awards of Science and Technology Progress and popularized as the key scientific payoffs and the recommended products used to construct the Xiaokang residential quarters by the Ministry of Construction. ZY is a kind of water-resisting admixture coupled with crack resisting. It has been used in thousands of water-resisting and crack-resisting engineering in countrywide and came to the top since it adopted the identification at ministry level in 1991.1) Chemical elements and alkali content Table 1. Chemical elements and alkali content:

LossSiO2Al2O3Fe2O3CaOMgOSO3K2ONa2O
1.7015.2016.500.9032.602.3529.550.300.10

* the alkali content R2O = Na2O+0.658K2O =0.3%Table 2. The alkali content of various expansion agents:

SortsAlkali content(%)Normal addition amount(%)C=400kg/m3addition amount(kg/m3)Alkali content from expansion agent(kg/m3)
UEA type1.7-2.212480.82-1.05
UEA-H0.4-0.710400.20-0.40
ZY0.2-0.56240.05-0.12

Table 3. Performance index of ZY concrete expansion agent

ItemJC476-2001 standardRepresentative Value of ZY
MgO (%)≤5.000.67
Water ratio (%)≤3.001.54
Total alkali content (%)≤0.750.32
Cl (%)≤0.050.01
Fineness(Water-sieving) 0.08mmscreenresidue≤127.32
Setting timeInitial (min)≥452.15
Final (h)≤104.50
Limited expansion ratio (%)In water7d≥0.0250.032
28d≤0.100.045
Air21d≥-0.020-0.010
Creasing strength(MPa)7d≥25.032.4
28d≥45.052.6
Compressivestrength( MPa)7d≥4.56.8
28d≥6.58.4

Shunan ZY Concrete Expansive Agent



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