六百二十六章 沥青筑路的大计划(2 / 2)

使者低头回禀,修洛特点头沉吟。这一片沿海的地下,必然藏着极为丰富的石油。而沥青,向来都是与石油伴生的“同胞兄弟”。

“天然沥青,正是天然的筑路材料!沥青油可以取代水泥,作为路面的粘合剂,而沥青石可以弄碎,替代细碎的砂石层。更关键的是,在植物茂盛的雨林,只有这种沥青的路面,才能抑制草木的生长,长久的维持下去!”

看着眼前的陶罐,修洛特眼中的光芒,越发明亮。

“筑路”!这是一个在他心中,始终念念不忘,存留了许久的大计划。他希望修建的,可不是那种简陋的土路,而是类似罗马石道,秦驰道那种,能够沟通天下南北,连通各部城邦的帝国动脉!

只是,中美洲地处热带,有高原与低地两种常见地形。联盟富庶的高原地区,年降水都在1000以上,而在联盟附庸的沿海低地,降水则在2000以上!而且,这样强度的降雨,大多集中在夏季的雨季。高温多雨,高原的灌木与杂草,只要几天时间,就能冒出一大截。而低地的雨林更为可怕,树木根系快速延伸,对土路的破坏,是难以想象的快!

所以,要在热带的中美洲修建道路,必须要有合适的修路材料,成本也极为高昂。

“参考罗马道路的修筑过程,再根据目前的技术水平,适当简化。嗯,至少需要三层,两层路基,一层路面!”

修洛特低下头,看着脚底的土地,回想着构思许久的筑路计划,胸中澎湃。

“首先,要开挖土面,一直挖到硬土层。这个深度,以目前的工具与人力,大概只能到一米多。然后,路基的最底层,是20-30公分厚的砂砾,用于平整路面,防止积水。”

“路基的第二层,则是60公分以上,大小石头、砂砾黏土的填充主体。需要先铺南瓜大的大石头,再填入人头大的中石,以及鹅卵石大的小石,最后填上细碎的砂砾与黏土。这一步过程,也会加入油状的沥青,作为取代水泥的黏合剂。或者加入风干砸碎的石沥青,作为填充小石的替代。至于最后一层路面...”

修洛特顿了顿,沉思不语,一时也拿不定主意。

罗马人有足够的人力与生产工具,可以直接切割巨型石板,用于铺设无缝的路面。秦朝也有足够的技术与人力,来炒熟泥土,混入盐碱,再用无数人工夯实,修建延续后世的驰道。而联盟目前的技术与生产力,确实是无法与两者相较。

“若是沥青的产量足够,中美洲帝国的大道,还是应该以沥青碎石的路面为主!而为了未来的便利,至少要修成两辆马车并行的四米,两侧还要开挖排水的小渠。”

念到此处,修洛特望向遥远的东方。在浩荡的加勒比海上,有一个满是黑色财富的大岛,给后世的天朝,提供了巨量的修路沥青。随后,他又望向西南,在科利马的山区,有还在活跃喷发的火山群,以及数万年喷发后留下的火山灰。那是制造罗马水泥的原料。

“科利马...王国都城...湖中都城...鸦城...”

修洛特喃喃自语,一条东西两千里的帝国大动脉,正在他的脑海里成形。要用许多万的人力,许多船的材料,许多年的时间,还有至高无上的权力,来贯通天下!

。:

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