A nanomodified cement consisting of particles with in situ synthesized carbon nanofibers was developed to introduce a strong load-sensing capability of the hydrated binder matrix. The material was produced using chemical vapor deposition. The nanomodified cement contained 2.71 wt% of carbon nanofibers (CNFs). The electrical properties of the composite were determined. Several mortar samples were prepared by partially substituting ordinary Portland cement with 2, 4, 6, 8, and 10 wt% of the nanomodified cement. Additionally an ordinary Portland cement mortar was used as reference. The results show that the strongest piezoresistive response and therefore the best load-sensing was obtained for the mortar containing the highest amount of CNFs. This mortar contained 10 wt% of nanomodified cement. The fractional change in electrical resistivity of this mortar was 82% and this mortar had a compressive strength of 28 MPa.

开发了一种由具有原位合成碳纳米纤维的颗粒组成的纳米改性水泥，以引入强力的水合粘合剂基质负荷感测能力。该材料是使用化学气相沉积法生产的。纳米改性的水泥包含2.71重量％的碳纳米纤维（CNF）。确定了复合材料的电性能。通过用2、4、6、8和10 wt％的纳米改性水泥部分替代普通波特兰水泥，制备了几种砂浆样品。另外，使用普通的波特兰水泥砂浆作为参考。结果表明，含有最高CNF的砂浆可获得最强的压阻响应，因此获得最佳的载荷感测。该砂浆包含10重量％的纳米改性水泥。