第1816章 我真傻,真的(2 / 2)

欧皇崛起 太上老牛 1256 字 2023-04-01

但周日上午去教堂做过礼拜(装装样子)后,马林忽然发现——貌似植物纤维里,还有茅草这个选项啊......

他是在从教堂回来时,路过贫民区,发现了那些土坯房后,忽然想起来——土坯房不就是最简单的混凝土结构么?

为了让土墙更牢固,在版筑土坯墙的时候,往往会在土墙里掺杂茅草作为“筋骨”,以增强土墙的抗拉能力,使其不易倒塌。

同样的道理,将韧性还不错的茅草作为“筋骨”,掺入水泥里面,也是有一定的抗拉能力的。至少,比单纯的水泥板要好些。

于是,马林就让水泥板厂进行试验,果然得到了效果还凑合的草筋混凝土的水泥板。虽然和钢筋混凝土远远不能比,也不如竹筋混凝土。但是,总比单单的水泥要强一点。马林心里明白,这种茅草筋骨制成的混凝土,不管是质量上,还是寿命上,都很一般。但是,那是和钢筋和竹筋混凝土比。若是只用于铺路,茅草筋骨的混凝土其实也是勉强可以用的。

毕竟,这个年代没有重卡这种毁路的玩意儿。通常马车,载重一两吨,就达到极限了。而这种程度的压力,草筋混凝土还是能胜任的。

而且,混凝土主要呈碱性,有一定的腐蚀能力。钢筋混凝土之所以不怕腐蚀,是因为钢铁不怕碱性环境,甚至能在钢筋表面生成碱性保护膜,提升钢筋混凝土的耐腐蚀能力。

而竹筋要差点,不是很耐腐蚀。但是,根据前世经验,竹筋混凝土坚持个二三十年也是没啥问题的。

而茅草比柱子的耐碱性可要强多了,虽然强度不如,但在使用寿命上,可能比竹筋混凝土还要强点。

最最关键的是——茅草便宜啊!茅草便宜啊!茅草便宜啊!(重要的事情说三遍)

在这个生产力极为低下的年代,成本就是一切。马林选择危害健康的石棉纤维,作为混凝土筋骨,也是因为石棉成本不高。至少,成本比剑麻纤维或油泡过的亚麻纤维低多了。

但不管怎么比,都没有比随处可见的茅草成本还低的。而且,茅草这玩意,牲口都不爱吃。马林眼下正在推动,将全国的草地都翻耕一下,然后把茅草等野草替换成苜蓿和黑麦草呢。如今,他最不缺的就是茅草这种杂草了。

而且,对于铺设普通道路而言,茅草做的草筋混凝土,寿命绝对够用了。要知道,在后世,某些城市还年年翻修道路呢,搞的大蓝翔的挖掘机毕业生都不够用。因为,砸开老的水泥路面需要挖掘机的破碎锤。毕竟,后世钢筋混凝土比较普遍。

就算草筋混凝土的寿命只有几年十几年,那也是足够的了,只要不是年年拆换,这成本就能承受得起。

“我真傻,真的!”马林喃喃自语。

“我咋就没早点想到便宜的草筋混凝土呢?”

“我真傻,真的......”马林重复了好几遍,已经快要化身祥林嫂了......

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