Effect of Incorporating Nanoporous Metal Phosphate Materials on the Compressive Strength of Portland Cement

4区材料科学 Q2 Engineering

Advances in Materials Science and Engineering Pub Date : 2008-03-16 DOI:10.1155/2008/238736

D. Wellman, K. Parker, S. Mattigod, G. Fryxell

引用次数: 0

Abstract

Nanoporous metal phosphate (NP-MPO) materials are being developed for removal of contaminant oxyanions (As(OH) O 3 2 − , C r O 4 2 − , and T c O 4 − ), and cations (mercury, cadmium, and lead) from water and waste streams. Following sequestration, incorporation of metal laden NP-MPOs as a portion of cement formulation would provide an efficient and low-cost way to immobilize metal laden NP-MPOs in an easily handled waste form suitable for permanent disposal. There are no known investigations regarding the incorporation of NP-MPOs in concrete and the effects imparted on the physical and mechanical properties of concrete. Results of this investigation demonstrated that incorporating of NP-MPO materials requires additional water in the concrete formulation which decreases the compressive strength. Thus, incorporation of NP-MPOs in concrete may not serve as an efficient means for long-term disposal.

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纳米多孔金属磷酸盐材料掺入对硅酸盐水泥抗压强度的影响

纳米多孔金属磷酸盐(NP-MPO)材料用于去除水和废物流中的污染物氧离子(As(OH) o32−，ccro42−和tco4−)和阳离子(汞，镉和铅)。在隔离之后，将含金属的np - mpo作为水泥配方的一部分，将提供一种有效和低成本的方法，将含金属的np - mpo固定在易于处理的废物形式中，适合永久处置。关于np - mpo在混凝土中的掺入及其对混凝土物理力学性能的影响，目前还没有已知的研究。研究结果表明，加入NP-MPO材料需要在混凝土配方中添加额外的水，这降低了混凝土的抗压强度。因此，在混凝土中掺入np - mpo可能不能作为长期处置的有效手段。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Materials Science and Engineering Materials Science-General Materials Science

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Advances in Materials Science and Engineering is a broad scope journal that publishes articles in all areas of materials science and engineering including, but not limited to: -Chemistry and fundamental properties of matter -Material synthesis, fabrication, manufacture, and processing -Magnetic, electrical, thermal, and optical properties of materials -Strength, durability, and mechanical behaviour of materials -Consideration of materials in structural design, modelling, and engineering -Green and renewable materials, and consideration of materials’ life cycles -Materials in specialist applications (such as medicine, energy, aerospace, and nanotechnology)