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Patent US4225359A successfully refreshed from Google Patents.
US4225359A
Expired / Lapsed
US
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Acidic earthen cemented compositions for building materials and process
Assignee: Individual
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Filing: 1979-04-27
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Granted: 1980-09-30
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Expires: 1999-04-27
Abstract
Abstract An improved earthen composition suitable for building construction comprises soil, a sulfonic acid, cellulose and a cementing agent comprising a calcium cement such as Portland cement, lime or calcium carbonate and/or an asphalt cement such as asphaltic concrete, asphalt, or tar. The compositions are prepared in an aqueous mixture, which is then tamped or consolidated, and dried.
Inventors
- 👤 Gordon L. Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:57
CPC Classifications
C; C04; C04B; C04B14/00; C04B14/02; C04B14/36; C04B14/361; C04B24/00; C04B24/001; C04B26/00; C04B26/02; C04B26/26; C04B28/00; C04B28/02; C08; C08L; C08L95/00; E; E01; E01C; E01C7/00; E01C7/36; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91; Y10; Y10S; Y10S106/00; Y10S106/90
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
36 words
An improved earthen construction composition comprising: soil, a sulfonic acid, cellulose, and a cementing agent selected from the group consisting of Portland cement, CaCo 3 , lime, asphalt, tars, synthetic and natural resins, and mixtures thereof.
Claim 2
Dependent Claim
36 words
An improved earthen construction composition comprising: soil, a sulfonic acid, cellulose, and a cementing agent selected from the group consisting of Portland cement, CaCo 3 , lime, asphalt, tars, synthetic and natural resins, and mixtures thereof.
Claim 3
Dependent Claim
14 words
The composition of claim 1 wherein said sulfonic acid comprises a spent sulfuric acid.
Claim 4
Dependent Claim
30 words
The composition of claim 2 including a fiberous material selected from the group consisting of wood fiber, chopped sisal, chopped hemp, sawdust, forest humus, straw, corn stalks and corn cobs.
Claim 5
Dependent Claim
20 words
The composition of claim 2 including a cellular inorganic material selected from the group consisting of vermiculite, diatomite, and pearlite.
Claim 6
Dependent Claim
24 words
The composition of claim 2 wherein said cellulose comprises paper and is between about 0.1 and about 5 percent, by weight, of the composition.
Claim 7
Dependent Claim
35 words
The composition of claim 3 wherein said cellulose comprises paper and is between about 0.1 and about 5 percent, by weight, and said fiberous material is up to about 85%, by weight, of the composition.
Claim 8
Dependent Claim
35 words
The composition of claim 6 wherein said cementing agent is selected from the group consisting of Portland cement, CaCo 3 and lime, and is between about 1 and about 25%, by weight, of the composition.
Claim 9
Dependent Claim
32 words
The composition of claim 6 wherein said cementing agent is selected from the group consisting of asphalt and tar, and is between about 1 and about 10%, by weight, of the composition.
Claim 10
Dependent Claim
25 words
The composition of claim 5, 6, 7 or 8 wherein said sulfonic acid comprises between about 0.01 and about 10%, by weight, of the composition.
Claim 11
Dependent Claim
32 words
A process of preparing a composition of claim 1 comprising preparing a mixture of sulfonic acid, soil and cellulose having a pH of below about 2.0, and thereafter adding the cementing agent.
Claim 12
Dependent Claim
40 words
A process of preparing a composition of claim 8 comprising preparing a mixture of sulfonic acid, soil and cellulose having a pH of below about 2.0, and thereafter adding asphalt to the mixture, before the pH rises above about 3.5.
Claim 13
Dependent Claim
16 words
The process of claim 11 wherein the asphalt is added before the pH rises above 2.5.
Claim 14
Dependent Claim
42 words
A process of claim 11 wherein the sulfonic acid is added to an aqueous mixture of the cellulose and blended, mixing the soil with sulfonic acid cellulose blend, adding the asphalt, mixing, and allowing the mixture to dry to achieve the composition.
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) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |