Claims
- 1. In a process of increasing the pozzolanic properties of a pozzolanic material, including fly ash, the steps of mixing pozzolanic material, calcium oxide and/or calcium hydroxide and water, at least one of said pozzolanic material, calcium oxide and/or calcium hydroxide and water being pretreated in such a manner that at the time of adding the water to a mixture of pozzolanic material and calcium oxide and/or calcium hydroxide the resulting mixture immediately attains a temperature of 80-100 deg. C.
- 2. In a process according to claim 1, wherein the total amount of water is added to a mixture of fly ash and calcium oxide and/or calcium hydroxide as one mass at one time.
- 3. In a process according to claim 1, wherein a mixture of heated fly ash and calcium oxide and/or calcium hydroxide is mixed with water.
- 4. In a process according to claim 1, wherein pozzolanic material, calcium oxide and/or calcium hydroxide and preheated water are mixed.
- 5. In a process according to claim 1, wherein the resulting mixture is used as a substitute for cement, such that the resulting mixture has or immediately thereafter attains a temperature of 80.degree.-100.degree. C.
- 6. In a process according to claim 1, wherein the resulting mixture of pozzolanic material, water and calcium hydroxide after having attained a temperature of 80.degree.-100.degree. C. is molded into an article being cured.
- 7. In a process according to claim 1, wherein the resulting mixture is mixed as binding agent with a filler, consisting of phosphoric acid waste gypsum and the mixture with said filler is molded into articles which are cured.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8501137 |
Apr 1985 |
NLX |
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Parent Case Info
This is a continuation of application Ser. No. 853,458 filed Apr. 18, 1986, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4018619 |
Webster et al. |
Apr 1977 |
|
4490178 |
Loggers et al. |
Dec 1984 |
|
Foreign Referenced Citations (2)
Number |
Date |
Country |
2384729 |
Nov 1978 |
FRX |
2501669 |
Sep 1982 |
FRX |
Continuations (1)
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Number |
Date |
Country |
Parent |
853458 |
Apr 1986 |
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