US4095988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self hardening suspension for foundation engineering purposes
Assignee: Vyskumny Ustav Inzenierskych Stavieb
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Filing: 1976-11-02
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Granted: 1978-06-20
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Expires: 1996-11-02
Abstract
Abstract There is provided a self-hardening suspension useful for example in the preparation of foundations. This suspension comprises water, cement, bentonite and hydraulic lime and also containing stabilizers, setting regulators, plasticizers and the like. Such a self-hardening suspension when used in foundation engineering such as walls, exhibits high stability.
Inventors
- 👤 Viliam Jancek
- 👤 Jan Gresa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:14
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/10; C04B28/12; C09; C09K; C09K17/00; C09K17/02; C09K17/10; E; E02; E02D; E02D5/00; E02D5/18; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
69 words
A self-hardening suspension for foundation engineering consisting essentially of by volume (a) 40 to 80% water, (b) a powder mass consisting essentially of from 10 to 40% cement, 2 to 18% bentonite, 1 to 15% hydraulic lime, 0 to 15% ashes and 0 to 40% ground slag and filling materials, and wherein the ratio by weight between water and powder mass is in the range of 0.5:1 to 6.5:1.
Claim 2
Dependent Claim
69 words
A self-hardening suspension for foundation engineering consisting essentially of by volume (a) 40 to 80% water, (b) a powder mass consisting essentially of from 10 to 40% cement, 2 to 18% bentonite, 1 to 15% hydraulic lime, 0 to 15% ashes and 0 to 40% ground slag and filling materials, and wherein the ratio by weight between water and powder mass is in the range of 0.5:1 to 6.5:1.
Claim 3
Dependent Claim
12 words
A self-hardening suspension of claim 1 which includes at least one plasticizer.
Claim 4
Dependent Claim
33 words
A self-hardening suspension according to claim 2 which comprises about 68% water, about 18.2% cement, about 5.7% bentonite, about 2% hydraulic lime, about 2% ashes, about 2% slag and about 1.2% liquid plasticizer.
Claim 5
Dependent Claim
27 words
A self-hardening suspension according to claim 2 which comprises about 60.9% water, about 26.2% cement, about 6% hydraulic lime, about 5.3% bentonite and about 1.6% liquid plasticizer.
Claim 6
Dependent Claim
13 words
A self-hardening suspension of claim 1 which includes at least one setting regulator.
Claim 7
Dependent Claim
32 words
A self-hardening suspension of claim 1 which includes at least one stabilizer for preventing or retarding sedimentation of relatively heavy grains or large particles and increasing the structural strength of the suspension.
Claim 8
Dependent Claim
18 words
A self-hardening suspension of claim 1 which includes at least one plasticizer and at least one setting regulator.
Claim 9
Dependent Claim
37 words
A self-hardening suspension of claim 1 which includes at least one plasticizer and at least one stabilizer for preventing or retarding sedimentation of relatively heavy grains or large particles and increasing the structural strength of the suspension.
Claim 10
Dependent Claim
38 words
A self-hardening suspension of claim 1 which includes at least one setting regulator and at least one stabilizer for preventing or retarding sedimentation of relatively heavy grains or large particles and increasing the structural strength of the suspension.
Claim 11
Dependent Claim
42 words
A self-hardening suspension of claim 1 which includes at least one plasticizer, at least one setting regulator and at least one stabilizer for preventing or retarding sedimentation of relatively heavy grains or large particles and increasing the structural strength of the suspension.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |