Fiber for reinforcing cement, and cured cement produced using same
AssigneesDaiwabo Holdings Co., Ltd., Daiwabo Polytec Co., Ltd.
InventorShigeki Kawakami
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Abstract
A cement reinforcing fiber of the present invention is a cement reinforcing fiber made of a polyolefin fiber, wherein a fiber treating agent is adhered to a surface of the polyolefin fiber, and the fiber treating agent is a polyoxyethylene alkyl phosphoric ester salt. One preferred polyoxyethylene alkyl phosphoric ester salt is a compound represented by chemical formula (2) below. A cured cement of the present invention contains the above-described cement reinforcing fiber. In the chemical formula (2) above, R is an alkyl group with a carbon number of 2 to 20, A is an alkali metal element, and n is 1 to 20.
Claims10
A cement reinforcing fiber made of a polyolefin fiber,
- wherein a fiber treating agent containing a polyoxyethylene alkyl phosphoric ester salt in an amount of 90 mass % or more is adhered to a surface of the polyolefin fiber, and
- the polyoxyethylene alkyl phosphoric ester salt is at least one compound selected from the group consisting of a compound represented by chemical formula (2) below and a compound represented by chemical formula (3) below:
- where in the chemical formula (2), R is an alkyl group with a carbon number of 2 to 20, A is an alkali metal element, and n is 1 to 20;
- and
- where in the chemical formula (3), R1 and R2 are an alkyl group with a carbon number of 2 to 20, A is an alkali metal element or an alkaline-earth metal element, and n and m are 1 to 20.
A cured cement comprising a cement reinforcing fiber made of a polyolefin fiber,
- wherein a fiber treating agent is adhered to a surface of the polyolefin fiber,
- the fiber treating agent is a polyoxyethylene alkyl phosphoric ester salt, and
- the polyoxyethylene alkyl phosphoric ester salt is at least one compound selected from the group consisting of a compound represented by chemical formula (2) below and a compound represented by chemical formula (3) below:
- where in the chemical formula (2), R is an alkyl group with a carbon number of 2 to 20, A is an alkali metal element, and n is 1 to 20;
- and
- where in the chemical formula (3), R1 and R2 are an alkyl group with a carbon number of 2 to 20, A is an alkali metal element or an alkaline-earth metal element, and n and m are 1 to 20.
Dependencies are inferred from the claim text.