PROMACRETE®

PROPERTIES & ADVANTAGES

  • Dense
  • Water-resistant refractory concretes
  • For high temperature applications up to 1650 °C

Refractory concrete

PROMACRETE® is a well-balanced range of various types of refractory concrete for monolithic refractory linings. These products consist of highly refractory raw materials and aluminous cements.

PROMACRETE®-PF refractory concretes are dense, wear-resistant refractory concretes for high temperature applications up to 1650 °C, e.g. for hearths, burner benches, tunnel kiln cars etc.
PROMACRETE®-PST is a dense, wear-resistant ramming compound for high thermal stress as repair mass and for ramming shaped parts like burnes.
PROMACRETE®-PR is dense, wear-resistant refractory concrete for high thermal stress, especially for fast cold and hot repairs.

Anchorage on request.

Technical data
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PROMACRETE®
Grade
-PF 132/18 -PF 
145/20
-PF
148/23
-PF
158/23
 
-PF
165/25
-PST
165/24 
-PR
145/20 
Classification temperature °C 
1320 1450
1480
1580  1650 1650  1450
Bulk density kg/m3
1830 2030
2270
2300  2450 2370
2000
Irreversible thermal expansion 1000 °C  0.58 0.62 0.64 0.64 0.67 0.71 0.62
Thermal conductivity 1000 °C, W/m.K
0.83
1.03
1.40
1.47 1.62 1.57
1.00
Cold crushing strength , N/mm2
17
@1200 °C
30
@1400 °C
90
@1400 °C
80
@1400 °C
90
@1600 °C
20
@1400 °C
18
@1400 °C


PROMACRETE®
Grade
-PF 132/18 -PF 
145/20
-PF
148/23
-PF
158/23
 
-PF
165/25
-PST
165/24 
-PR
145/20 
Classification temperature °C 
1320 1450
1480
1580  1650 1650  1450
Bulk density kg/m3
1830 2030
2270
2300  2450 2370
2000
Irreversible thermal expansion 1000 °C  0.58 0.62 0.64 0.64 0.67 0.71 0.62
Thermal conductivity 1000 °C, W/m.K
0.83
1.03
1.40
1.47 1.62 1.57
1.00
Cold crushing strength , N/mm2
17
@1200 °C
30
@1400 °C
90
@1400 °C
80
@1400 °C
90
@1600 °C
20
@1400 °C
18
@1400 °C
Working & processing
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  1. PROMACRETE® compounds are delivered dry in bags. The mixture may demix during transport. We therefore recommend that the complete contents of the bag are put into the mixer. If only parts of the contents are used, mix the dry contents of the bag thoroughly beforehand.
  2. Use only clean tap water for mixing. Acidic water, soft water or water containing sulphate reduces strength and leads to structural faults.
  3. The specific quantity of water required for mixing is a standard value. Mixing should not take less than one minute and not exceed four minutes.
  4. The following on-site test will help you to determine whether the right consistency has been achieved: Make a ball the size of a snowball from the mixed compound, throw it approx. 30 cm in the air and catch it. If it retains its shape, the consistency is right. If it crumbles, the compound is too dry. If it falls through the gaps between your fingers, it is too wet.
  5. PROMACRETE® products should be compressed immediately after mixing, using conventional tools. If setting has already begun, do not recompress.
  6. PROMACRETE® must retain some of the mixing water while it is hardening. It is therefore necessary to protect it from drying out for at least 24 hours.
  7. The setting times change at temperatures below 5 °C. Make sure that the temperature of the prepared concrete is raised to at least 5 °C. Never use frozen material.
  8. For heating up the following rules should be observed: Setting period: 3 days; keep at 100 °C for 24h; keep at 200 °C for 48h; from 200 -  600 °C approx. 20 K/h; from 600 °C until the final temperature 30 K/h.
  1. PROMACRETE® compounds are delivered dry in bags. The mixture may demix during transport. We therefore recommend that the complete contents of the bag are put into the mixer. If only parts of the contents are used, mix the dry contents of the bag thoroughly beforehand.
  2. Use only clean tap water for mixing. Acidic water, soft water or water containing sulphate reduces strength and leads to structural faults.
  3. The specific quantity of water required for mixing is a standard value. Mixing should not take less than one minute and not exceed four minutes.
  4. The following on-site test will help you to determine whether the right consistency has been achieved: Make a ball the size of a snowball from the mixed compound, throw it approx. 30 cm in the air and catch it. If it retains its shape, the consistency is right. If it crumbles, the compound is too dry. If it falls through the gaps between your fingers, it is too wet.
  5. PROMACRETE® products should be compressed immediately after mixing, using conventional tools. If setting has already begun, do not recompress.
  6. PROMACRETE® must retain some of the mixing water while it is hardening. It is therefore necessary to protect it from drying out for at least 24 hours.
  7. The setting times change at temperatures below 5 °C. Make sure that the temperature of the prepared concrete is raised to at least 5 °C. Never use frozen material.
  8. For heating up the following rules should be observed: Setting period: 3 days; keep at 100 °C for 24h; keep at 200 °C for 48h; from 200 -  600 °C approx. 20 K/h; from 600 °C until the final temperature 30 K/h.
Typical applications
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PROMACRETE® is mainly used for furnaces.
PROMACRETE® is mainly used for furnaces.
Documents
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Technical Data Sheets (TDS)

Technical Data Sheets (TDS)