产品别名 |
设备灌浆料 |
面向地区 |
High-Strength Non-Shrinking Grouting Material
1. Main Components
This product is an advanced cement-based grouting material composed of high performance cement, aggregate, admixture and mineral additive. It is divided into E and L types. E types base material is a quick setting, rapid hardening and early strength cement, and type Ls base material is a non-shrinking high-strength Portland cement.
2. Performance and characteristics
2.1 Product standards: GB/T50448 "The Technical Specifications of Cement-Based Grouting Material".
2.2 The main characteristic indexes:
| Classes
| Ⅰ
| Ⅱ
| III
| IV
| |||
| Maximum grain size（mm）
| ≤4.75
| 4.75～16
| |||||
| Fluidity （mm）
| At the beginning
| ≥380
| ≥340
| ≥290
| ≥270
| ≥650
| |
| 30 min
| ≥340
| ≥310
| ≥260
| ≥240
| ≥550
| E type has no these requirements
| |
| Vertical expansion rate（%）
| 3h
| 0.1～3.5
| |||||
| Difference between 24h and 3h
| 0.02～0.5
| E type has no these requirements
| |||||
| Compressive strength（MPa）
| 1d
| 3d
| 28d
| ||||
| ≥20
| ≥40
| ≥60
| E type:1d≥40 L type:1d≥30
| ||||
| Steel-bar corrosion
| None
| ||||||
| Bleeding rate（%）
| 0
| ||||||
Performance Indexes of Grouting Material for Winter Construction
(in addition to the above indexes)
Compressive strength ratio (%)
| Specified temperature (℃)
| R-7
| R-7+28
| R-7+56
|
| -5
| ≥20
| 80
| ≥90
|
| -10
| ≥12
|
R-7 - The strength ratio between the negative temperature specimen at 7days and the standard curing specimen at 28 days
The lowest temperature during construction may be by 5 ℃ lower than the specified temperature.
Heat-tolerance indexes of grouting material in a high temperature environment \
（in addition to the above）
| Ambient temperature（℃）
| compressive strength ratio（%）
| thermal shock resistance
|
| ≤500
| ≥100
| 20 times（There is no shedding phenomenon on the surface of the test block. The ratio of compressive strength between the water- soaking end of the test specimen after thermal shock and the test specimen at 28 days after standard curing is >90%）.
|
3. Material selection
3.1 This product is suitable for the fastening of foundation bolts and concrete structure and the grouting of equipment foundation or steel column base plates, and pre-stressed concrete structure pores.
3.2 E type grouting material is suitable for the environment at temperature range of 80 ℃ ～ -10 ℃ in early strength and rapid setting works that need emergency repairs and construction, early high strength works and negative temperature works.
3.3 L type is applicable to the environment. of 5 ℃～500 ℃。
3.4 This product is suitable for the preparation of high flow, high-strength non-shrinking concrete, early strength, non- shrinking concrete, filler concrete and mortar with the above performance.
3.5 E type of the product is highly resistant to the chemical corrosion of sea water, brine and saline lake water and suitable for the works in the areas of sea and ocean, saline lake and saline soil.
3.6 The volumetric weight values when preparing and calculating material （kg/m3）： 2100 - 2200.kg/m3.
